A tank of methane holds 1,550m3 and is held at STP.
a. How many moles of methane are in the tank?
b. How many Kilograms of methane are in the tank?
c. What is the density of the methane?
d. How many carbon atoms are in the tank?

Answers

Answer 1

According to the question, there are 65,569 carbon atoms, 1,051.6 kg of gas, 0.716 g/L of methane density, and 65,569 mole of methane in the tank.

One mole—what is it?

A mole is the volume of a material that includes 6.022 X 1023 of the substance's particles, atom, ions, molecules, etc. A mole is a unit for counting molecules, ions, or atoms.

a. The ideal gas law, PV = nRT, can be used to estimate how many moles of methane are present in the tank. The pressure and temperature are both 1 atm at STP. 0.0821 L atm/K mol is the real gases constant.

The result is that n = (PV) / (RT)

= (1 atm x 1550 m3) / (0.0821 Latm/Kmol x 273 K)

= 65,569 moles.

b. The molarity of methane should be used to determine the weight of methane in kilograms. Methane has a molar mass of 16.04 g/mol.

Methane's mass in kilos is as follows:

1,051.6 kg is equal to 65,569 moles times 16.04 g/mol/1000 g/kg.

c. The optimal gas law and the molecular concentration of methane can be used to get the density of methane.

Density is determined as follows: (16.04 g/mol at 1 atm) / (0.0821 L/atm/K mol at 273 K) = 0.716 g/L.

d. Using the amount of moles of methane that we established in part (a), we can use that information to calculate the amount of carbon atoms inside the tank.

As a result, the tank is filled 65,569 carbon atoms.

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Related Questions

please help!!! A, B, C, or D

Answers

Answer:

A

Refer to pic for explanation

Which of the following is not a characteristic of a sonnet?

14 lines
Blank verse
Iambic pentameter
Rhyme scheme ABAB CDCD EFEF GG

Answers

Blank verse is not a characteristic of a sonnet.

What is not a characteristics of a sonnet?

Blank verse is not a characteristic of a sonnet. Sonnets are typically written in iambic pentameter and have 14 lines, and the rhyme scheme varies depending on the type of sonnet. For example, the Shakespearean sonnet typically has the rhyme scheme ABAB CDCD EFEF GG, while the Petrarchan sonnet has the rhyme scheme ABBAABBA CDCDCD or ABBAABBA CDECDE. Blank verse, on the other hand, is unrhymed iambic pentameter and is typically used in longer poems or plays.

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Help Asha identify whether the reaction is a synthesis or decomposition reaction: 2 HCI → H₂ + Cl₂
A) Synthesis
B) Decomposition

Answers

Considering the definition of synthesis and decomposition reaction, the reaction 2 HCI → H₂ + Cl₂ is considered as a decomposition reaction.

Definition of synthesis reaction

Synthesis or combination reactions occur when two or more reactants form a single product; heat is usually released (exothermic reaction).

The general form of the equation for this type of reaction is the following:

A + B → AB

Definition of decomposition reaction

In a decomposition reaction, a single substance breaks down, producing two or more different substances. This type of reactions can be considered the inverse of synthesis reactions. Heat is usually needed for the reaction to occur.

The general form of these equations is as follows:

AB → A + B

This case

The reaction 2 HCI → H₂ + Cl₂ is considered as a decomposition reaction because hydrochloric acid molecule breaks down to produce hydrogen gas and chlorine gas.

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11. A chemist mixed two samples together: a brown solid that melts at about 1,300°C and a colorless liquid that melts at about 20°C. She analyzed the results and found two ending substances. One of the ending substances melts at about 250°C. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples the chemist mixed together?

Answers

Diagram c to the left shows the repeating groups of atoms that make up the samples the chemist mixed together.

What is atoms?

Atoms are the smallest unit of matter that make up all physical objects. Atoms are composed of three main components: protons, neutrons, and electrons. Protons and neutrons are found in the nucleus of the atom and have a positive charge, while electrons orbit the nucleus and have a negative charge. Atoms can join together to form molecules, which are the building blocks of all matter. Atoms of different elements can join together in different ways to form compounds and these compounds are the basis of all substances. Atoms are also the basis of all chemical reactions and can exist in different physical states, such as solid, liquid, or gas. Atoms can also be combined to form isotopes, which are atoms of the same element with different numbers of neutrons.

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The periodic table is shown below.



When a highly reactive metal, such as magnesium (Mg), is mixed with a reactive nonmetal such as sulfur (S), the two elements will most likely combine to form a new substance, magnesium sulfide (MgS).

Based on the trends of the periodic table, which other element is likely to combine with magnesium?

Answers

According to the periodical table's trends, an element with qualities like to sulfur (S) is most likely to mix with mag (Mg), as magnesium has a predisposition to react with sensitive nonmetals the same as sulfur and produce compounds.

Is daily magnesium intake okay?

For the majority of individuals, regular doses under 350 mg are safe. The adverse effects of magnesium can also include nausea, nausea, diarrhea, and upset stomach in some people. Magnesium is POSSIBLY SAFE Only if TAKEN IN VERY HIGH AMOUNTS (more than 350 mg daily).

Anybody shouldn't take magnesium, right?

And then use magnesium, individuals who have diabetes, digestive disease, heart disease, or renal disease should see their healthcare professional.

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how is the digestive system important to the muscular system

Answers

Answer:

The digestive system is important to the muscular system because it provides the necessary nutrients and energy required for muscle function and growth. The digestive system breaks down food into smaller molecules such as carbohydrates, proteins, and fats, which are then absorbed into the bloodstream and transported to the muscles. The muscles use these nutrients as fuel for energy during muscle contraction and growth. Additionally, the digestive system helps to eliminate waste products that can impair muscle function, such as lactic acid. Therefore, a healthy digestive system is essential for maintaining optimal muscular function and overall physical performance.

Explanation:

Consider the Haber-Bosch process for the synthesis of ammonia from its elements.
Calculate the theoretical yield in moles NH, from the complete reaction of 15.6
grams H₂ in the presence of excess N, gas according to the following balanced
chemical equation:
ADD FACTOR
3 H₂(g) → 2 NH,(g)
N₂(g) + 3

Answers

Answer:

The theoretical yield in moles of NH3 is 5.2 moles. This is calculated by dividing the mass of H2 (15.6 g) by the molar mass of H2 (2.016 g/mol) to get the number of moles of H2 (7.76 moles). Then, using the mole ratio from the balanced equation, we can calculate the number of moles of NH3 produced (5.2 moles).

Explanation:

Determine if each set of the quantum numbers is allowed or not allowed.

Answers

Rules Governing the Allowed Combinations of Quantum Numbers

The principal quantum range (n) can't be zero. The allowed values of n are consequently 1, 2, 3, 4, and so on. The angular quantum quantity (l) can be any integer between zero and n - 1. If n = 3, for example, l can be either 0, 1, or 2.

Which of the following units of quantum numbers are not allowed and why?

The set of quantum numbers n=1,l=1,ml=0,ms=+21 is no longer viable for an electron.

Which of the following units quantum numbers is allowed?

So right set of quantum numbers is n=2,l=1,m=0,s=+21.

Which of the following is an allowed set of quantum numbers for an electron in the 4p orbital?

Solution : The designation `4p` indicates that the orbital has a important quantum number `n = 4` and an angular-momentum quantum wide variety `l = 1`. The magnetic quantum quantity can have any of the values `-1, 0`, or `+1`.

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The specific heat capacity of wood is 1.76 J/g °C. The specific heat capacity of steel is
0.47 J/g °C. Which material is the better conductor of heat?

Answers

Answer:

The specific heat capacity of a substance represents the amount of energy required to raise the temperature of 1 gram of that substance by 1 degree Celsius. A material with a lower specific heat capacity will require less energy to raise its temperature than a material with a higher specific heat capacity.

Therefore, steel is the better conductor of heat because it has a lower specific heat capacity than wood. Steel can transfer heat more quickly than wood due to its lower specific heat capacity.

Explanation:

If you were asked to dissolve a solid into an aqueous solution, how could you speed this process up? How could you slow it down? Listed below are a number of possible ways to alter the rate of this process. Place them in the proper category. If you need help, think about putting sugar in your tea.

Answers

The dissolution can be sped up by stirring and it can be slowed by cooling the solution.

How could you speed up the dissolution of a solid in a solution?

Breaking the solid into smaller pieces, grinding it into a powder, or using a solution with a larger surface area can increase the surface area of the solid, making it easier for the solvent to come into contact with the solid and dissolve it faster.

Stirring, shaking, or otherwise agitating the solution can help to increase the mixing of the solvent and the solid, which can speed up the dissolution process.

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story of a carbon molecule

Answers

Answer:

Once upon a time, there was a carbon molecule named Carl. Carl was part of a larger molecule called carbon dioxide, which was constantly moving and shifting around in the air.

One day, Carl was breathed in by a plant. The plant used the carbon in Carl's molecule to create energy through a process called photosynthesis. Carl became a part of the plant, helping it to grow and thrive.

Over time, the plant continued to grow and eventually became a tree. Carl's molecule was now a part of the tree, where it helped to create wood and other plant materials.

As the tree grew older, it eventually fell to the ground and began to decompose. Carl's molecule was released back into the air as carbon dioxide, where it joined other carbon molecules in the atmosphere.

Over time, Carl's molecule was breathed in by animals, used in photosynthesis by plants, and released back into the air as part of the natural carbon cycle. Despite the many twists and turns of its journey, Carl's molecule continued to play an important role in the cycle of life on Earth.

Explanation:

You have a glass of water and a piece of metal. The water in the glass weighs 250 g and is at 25 C. The metal is at 155 C. You measure the final temperature of the water plus metal to be 38.5 C. The specific heat of the metal is .345 J/gC and for water the specific heat is 4.184 J/gC. How many grams did the piece of metal weigh?

Answers

You use q = mcT again, but this time you assume qaluminum = qwater and solve for T, which is the ultimate temperature. You must research the specific heat values (c) of aluminum and water.

How do you find the specific heat capacity of a metal in water?

To calculate the heat capacity of a metal, use Q = smT. (In this calculation, make careful to include the heat given out by the metal, the mass of the metal, and the temperature change of the metal.)

The metal will cool and the water will heat up over time. The two things will eventually have the same temperature. They are then considered to be thermally balanced with one another.

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Calculate the pH at the equivalence point for the following titration: 0.20 M HCl versus 0.10 M NaOH.

Answers

The pH at the equivalence point for the titration of 0.20 M HCl versus 0.10 M NaOH is 7.0.

The reaction between HCl and NaOH is a strong acid-strong base titration. At the equivalence point, all of the HCl has reacted with an equal amount of NaOH to form water and NaCl.

Steps

The balanced equation for the reaction is:

HCl + NaOH → NaCl + H2O

Since the reaction between HCl and NaOH is a 1:1 stoichiometric ratio, we can say that at the equivalence point, the moles of HCl consumed are equal to the moles of NaOH added.

Moles of HCl = concentration of HCl × volume of HCl used

Moles of NaOH = concentration of NaOH × volume of NaOH added

At the equivalence point, Moles of HCl = Moles of NaOH. Therefore,

concentration of HCl × volume of HCl used = concentration of NaOH × volume of NaOH added

Since we have equal volumes of HCl and NaOH at the equivalence point, we can simplify the equation to:

concentration of HCl = concentration of NaOH

Therefore, the concentration of HCl and NaOH at the equivalence point is both 0.15 M (the average of the initial concentrations of 0.20 M HCl and 0.10 M NaOH).

To find the pH at the equivalence point, we can use the equation for the dissociation of water:

H2O ⇌ H+ + OH-

At 25°C, the concentration of water is 55.5 M. At the equivalence point, the concentration of H+ and OH- are both equal, so we can write:

Kw = [H+][OH-]

where Kw is the ion product constant for water, which has a value of 1.0 × 10^-14 at 25°C.

At the equivalence point, the concentration of H+ and OH- are both equal to the concentration of NaOH and HCl, which is 0.15 M.

Therefore:

Kw = [H+][OH-]

1.0 × 10^-14 = [0.15][0.15]

[H+] = [OH-] = sqrt(1.0 × 10^-14) = 1.0 × 10^-7 M

The pH at the equivalence point is equal to the negative logarithm of the H+ concentration:

pH = -log[H+]

pH = -log(1.0 × 10^-7)

pH = 7.0

Therefore, the pH at the equivalence point for the titration of 0.20 M HCl versus 0.10 M NaOH is 7.0.

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A 9.10 L
container holds a mixture of two gases at 43 °C.
The partial pressures of gas A and gas B, respectively, are 0.264 atm
and 0.548 atm.
If 0.130 mol
of a third gas is added with no change in volume or temperature, what will the total pressure become?

Answers

Answer:

we can use the ideal gas law equation:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

First, we can find the total number of moles of gas in the container:

n(total) = n(A) + n(B)

To find the number of moles of each gas, we can use the partial pressures and the total pressure:

P(A) / P(total) = n(A) / n(total)

P(B) / P(total) = n(B) / n(total)

We can rearrange these equations to solve for n(A) and n(B):

n(A) = P(A) / P(total) × n(total)

n(B) = P(B) / P(total) × n(total)

We know that the partial pressures of gas A and gas B are 0.264 atm and 0.548 atm, respectively, and we can find the total pressure by adding these partial pressures:

P(total) = P(A) + P(B) = 0.264 atm + 0.548 atm = 0.812 atm

We can also find the total number of moles of gas in the container:

n(total) = PV / RT = (0.812 atm) × (9.10 L) / (0.08206 L·atm/mol·K × 316 K) = 0.286 mol

Now we can add 0.130 mol of a third gas, which gives us a new total number of moles of gas:

n(new) = n(total) + 0.130 mol = 0.286 mol + 0.130 mol = 0.416 mol

Since there is no change in volume or temperature, the new total pressure will be proportional to the total number of moles of gas:

P(new) = P(total) × n(new) / n(total) = (0.812 atm) × (0.416 mol) / (0.286 mol) = 1.18 atm

Therefore, the total pressure will become 1.18 atm.

Which observations support the law of conservation of mass for electrolytic decomposition of
water

Answers

Answer:

1. The total masses of the products (hydrogen and oxygen gases) is equal to the mass of the water that was decomposed.

2. The number of atoms of each element in the reactants is equal to the number of atoms of each element in the products.

3. The total charge of the reactants is equal to the total charge of the products.

Explanation: water.

A. How many moles of O₂ would 13.0 mol of Al2O3 produce?

Answers

19.5 moles of oxygen will be produced by 13 moles of Al₂O₃.

What is a mole?

The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a specific measure of the number of atoms or molecules in a bulk sample of matter.

A mole is defined as the amount of substance containing the same number of atoms, molecules, ions, etc. as the number of atoms in a sample of pure 12C weighing exactly 12 g.

Given,

Moles of Al₂O₃ = 13 moles

From the reaction -

                                           2 Al₂O₃ ⇒ 4Al + 3O₂

2 moles of Al₂O₃ produces 3 moles of O₂

1 mole of Al₂O₃ produces 3 ÷ 2 moles of O₂

1 mole of Al₂O₃ = 1.5 mole of O₂

So, 13 moles of Al₂O₃ = 1.5 × 13 moles of O₂

                                    = 19.5 moles of O₂.

Therefore, 19.5 moles of oxygen will be produced by 13 moles of Al₂O₃.

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10-14 what are the answers Show your work for all of these questions for brainliest and 20 points I need HELP ASAP PLS ITS HW

Answers

10. 214g
11. 5.08g
12. 1.08x10^-23 atoms of N
13. 2.30x10^23 atoms of Zn
14. 0.77 moles of Ne
explanation in picture :)

What element is this?
Its electron-dot structure has six dots, and its atoms bond in a one-to-one ratio with magnesium. It has the highest electronegativity in its group.

Answers

Answer:

the element is oxygen.

Explanation:

oxygen has six Valence electron which is why it's electron-dot structure also know as Lewis structure has six dots. it also has high electronegativity and form one-to-one bond with magnesium

Method for naming ionic compounds

Answers

The cation is mentioned first, followed by the anion, when identifying an ionic compound. Positive and negative charges must be equal. Certain anions with various forms are denoted by Roman numerals.

What procedures are employed while naming ionic compounds?

Ionic compounds, which are neutral substances, are made up of positively charged ions, known as cations, and negatively charged ions, known as anions. substances with binary ions (ionic compounds that contain only two types of elements).

What is a naming guideline for ionic compounds?

The anion is written after the cation in the name. When a formula unit contains two or more of the same polyatomic ion, the subscript is written outside of the parenthesis.

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Magnesium oxide can be made by heating magnesium metal in the presence of the oxygen. The balanced equation for the reaction is
2Mg(s)+O2(g)→2MgO(s)
When 10.2 g Mg is allowed to react with 10.4 g O2, 11.9 g MgO is collected.
Determine the theoretical yield for the reaction. In grams
Determine the percent yield for the reaction. In grams

Answers

The theoretical yield for the reaction is 16.97 g MgO.

The percent yield for the reaction is 70.08%.

Steps

Let's calculate the moles of Mg and O2:

Moles of Mg = 10.2 g / 24.31 g/mol = 0.420 mol

Moles of O2 = 10.4 g / 32.00 g/mol = 0.325 mol

The theoretical yield of MgO can be calculated using the moles of Mg:

Moles of MgO = 0.420 mol Mg × (2 mol MgO / 2 mol Mg) × (40.31 g/mol MgO) = 16.97 g

Therefore, the theoretical yield for the reaction is 16.97 g MgO.

To calculate the percent yield, we need to compare the actual yield to the theoretical yield:

Percent yield = (actual yield / theoretical yield) × 100%

Percent yield = (11.9 g / 16.97 g) × 100% = 70.08%

Therefore, the percent yield for the reaction is 70.08%.

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What is the volume of 2.0g of hydrogen gas?

Answers

Around 24dm3 in room temperature

A piece of gold (c = 0.129 J/g°C) with mass of 45.5 g and a temperature of 80.5°C is dropped into 192 g of water at 15.0C. What is the final temperature of the water? (Hint: Use the equation qw = -qg.)

Answers

According to the solving the final temperature of the water is 15.317°C.

What does the phrase "change in temperature" signify in chemistry?

When heat flows through an area, the temperature changes, either rising or falling. By examining the reaction and determining if it is endothermic or exothermic, it is possible to determine that this alters chemical equilibria towards the products or reactants.

According to the given information:

Q lost by gold = Q gained by water

where Q is the heat absorbed or lost, which can be calculated using:

Q = m * c * ΔT

where m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

First, let's calculate the heat lost by the gold:

Q lost by gold = m * c * ΔT

= 45.5 g * 0.129 J/g°C * (80.5°C - 15.0°C)

= 231.1 J

This heat is gained by the water, so:

Q gained by water = 231.1 J

Using the same formula for the water, we can calculate the final temperature:

Q gained by water = m * c * ΔT

231.1 J = 192 g * 4.184 J/g°C * (T - 15.0°C)

T - 15.0°C = 0.317°C

T = 15.0°C + 0.317°C

T = 15.317°C

the final temperature of the water is 15.317°C.

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Anyone please help me, I need it asap!

Answers

IV. Molecular formula

a. C₂H₂

b. C₂H₄

V. Emperical formula

a. C₅H₄

b. C₆H₆

VI. a. Reactants: Na₂SO₄(aq) + Ca(NO₃)₂(aq) Products: CaSO₄(s) + 2NaNO₃(aq) Type of reaction: Double displacement

b. Reactants: 3Mg(s) + N₂(g) Products: Mg₃N₂(s) Type of reaction: Combination

VII. a. 2Hg(NO₃)₂(s) → 2Hg(l) + 2NO₂(g) + O₂(g)

b. Ca₃(PO₄)₂(aq) + 2H₃PO₄(aq) → 3Ca(H₂PO₄)₂(aq)

c. 3NaOH(aq) + FeCl₃(aq) → Fe(OH)₃(s) + 3NaCl(aq)

What is a Double displacement reaction?

A double displacement reaction, also known as a double replacement reaction or metathesis reaction, is a type of chemical reaction in which two compounds exchange or switch their constituent ions to form two new compounds.

In this type of reaction, the cations and anions of two ionic compounds exchange places to produce two new compounds, with no change in the oxidation state or charge of the elements involved. The general form of a double displacement reaction is AB + CD → AD + CB, where A, B, C, and D represent different ions or atoms.

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PLEASE URGENT ! 100 POINTS

If 16.0 g of AgNO3 react with an excess of BaCl2 according to the following equation, what mass of AgCl gets produced?

2 AgNO3+ BaCl2 → 2 AgCl +Ba(NO3)2

If only 10.0 g of AgCl were recovered, what is the percent yield of this reaction?

Answers

The molar mass of AgNO3 is 169.87 g/mol, and the molar mass of AgCl is 143.32 g/mol. We can use these values to calculate the theoretical yield of AgCl:

First, we need to determine the limiting reagent in the reaction. We have 16.0 g of AgNO3, which is:

16.0 g AgNO3 x (1 mol AgNO3/169.87 g AgNO3) = 0.0942 mol AgNO3

If we assume an excess of BaCl2, we can calculate the maximum amount of AgCl that can be produced:

0.0942 mol AgNO3 x (2 mol AgCl/2 mol AgNO3) x (143.32 g AgCl/1 mol AgCl) = 26.99 g AgCl (theoretical yield)

However, only 10.0 g of AgCl were recovered. We can calculate the percent yield of the reaction as follows:

Percent yield = (actual yield/theoretical yield) x 100%

Percent yield = (10.0 g AgCl/26.99 g AgCl) x 100% = 37.05%

Therefore, the percent yield of the reaction is 37.05%.

a sample of crystaline compound when heated in an open test tube produced sevrral droplets of water on the cool upper region of the tube the residue

Answers

The presence of water droplets on the cool upper portion of the test tube after heating the compound suggests that water molecules are trapped within its crystal structure. If the substance were a real hydrate, heating it would have caused all of the water molecules to evaporate, leaving behind an anhydrous substance.

What do you mean by crystalline compound?

A substance is said to be crystalline if it contains a repeating pattern of well-defined, organised, three-dimensionally arranged atoms or molecules throughout its structure. The compound's distinctive crystalline shape comes from this ordered arrangement, which also gives it additional crystalline solid-specific physical and chemical features.

Crystalline compounds can take on a variety of shapes, from straightforward atomic or molecule crystals to intricate mineral formations, and they can be made up of a variety of different elements and compounds. Crystalline substances include, among many others, diamond (carbon), sugar (sucrose), table salt (NaCl), and sugar.

The presence of water droplets on the cool upper portion of the test tube after heating the compound suggests that water molecules are trapped within its crystal structure. If the substance were a real hydrate, heating it would have caused all of the water molecules to evaporate, leaving behind an anhydrous substance.

However, the residue created a yellow-brown solution after being further dissolved in water, which is a certain sign of contaminants. When dissolved in water, true hydrates always produce a clear, colourless solution. Thus, the fact that the residue resulted in a coloured solution implies that the compound had impurities.

Together, the water stains and contaminants in the leftovers indicate that the original substance was not a genuine hydrate, but rather a mixture of the anhydrous substance and water, which may have been non-stoichiometrically trapped inside the crystal lattice or adsorbed onto the surface of the crystals.

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2.62 Predict the chemical formulas of the compounds formed by the following pairs of ions: (a) Cr3+ and Br, (b) Fe3+ and O2, (c) Hg22+ and CO2, (d) Ca2+ and CIO3, (e) NH4+ and PO³

Answers

The compounds formed are;

1) [tex]CrBr_{3}[/tex]

2) [tex]Fe_{2} O_{3}[/tex]

3)  [tex]((Hg)_2}) _{2} (CO_{3}) _{2}[/tex]

4) [tex]Ca(ClO_{3} )_{2}[/tex]

5)[tex](NH_{4}) _{3} PO_{4}[/tex]

How are ionic compounds formed?

Ionic compounds are formed through a type of chemical bonding called ionic bonding. Ionic bonding occurs when one or more electrons are transferred from one atom to another, resulting in the formation of ions, which are atoms or molecules that have a net electric charge due to a loss or gain of electrons.

The formation of ionic compounds typically occurs between atoms with large differences in electronegativity, or the ability of an atom to attract electrons.

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need help with % yield please : (

When 48.91 grams of SiC are reacted with 14.048 liters of Cl2, 31.527 grams of SiCl4 are produced at STP. What is the percent yield of this reaction?

Answers

To calculate the percent yield of the reaction, we first need to calculate the theoretical yield of the reaction, which we can calculate using stoichiometry:

From the balanced chemical equation: SiC + 2Cl2 -> SiCl4 + C

Molar mass of SiC = 40.10 g/mol
Molar mass of Cl2 = 70.91 g/mol
Molar mass of SiCl4 = 169.9 g/mol

Number of moles of SiC = 48.91 g / 40.10 g/mol = 1.221 mol
Number of moles of Cl2 = (14.048 L) * (1 mol / 22.414 L) = 0.6268 mol (using the ideal gas law at STP)
Using the stoichiometric coefficients, we can see that 1 mol of SiC produces 1 mol of SiCl4, so the theoretical yield of SiCl4 is equal to the number of moles of SiC, which is 1.221 mol.

We can calculate the mass of theoretical yield of SiCl4 using its molar mass:
Mass of SiCl4 (theoretical) = 1.221 mol * 169.9 g/mol = 207.4 g

Now, we can calculate the percent yield:

Percent yield = (actual yield / theoretical yield) * 100%

We are given that the actual yield of SiCl4 is 31.527 grams.

Percent yield = (31.527 g / 207.4 g) * 100% = 15.2%

Therefore, the percent yield of the reaction is approximately 15.2%.

5-chloro-4-methyl-2-nonyne

Answers

5-chloro-4-methyl-2-nonyne is an organic compound with the molecular formula C11H19Cl. It belongs to the class of alkynes, which are hydrocarbons that contain at least one triple bond between two carbon atoms.

The name of the compound indicates that it has a chlorine atom (denoted by "chloro") attached to the fifth carbon atom of the carbon chain, a methyl group (-CH3) attached to the fourth carbon atom, and a triple bond between the second and third carbon atoms of the carbon chain. The carbon chain contains a total of nine carbon atoms (denoted by "nonyne" indicating nine carbons).

The structural formula of 5-chloro-4-methyl-2-nonyne can be written as:

CH3-C≡C-C(CH2)6-Cl

where the triple bond is represented by a "≡" symbol, and the carbon atoms are numbered according to the naming convention.

Answer:

it's an organic compound

How many moles are in 1.55x10^23

Answers

Answer:

0.257383555 moles

Explanation:

2KClO3-2KCl+3O2 how many moles of O2 can be produced by decomposing 12 moles of KClO3?

Answers

18 moles of oxygen can be produced by decomposing 12 moles of KClO₃.

How many moles are produced from 12 moles of KClO₃?

The balanced chemical equation for the decomposition of KClO₃ is:

2KClO₃ → 2KCl + 3O₂

According to the equation, for every 2 moles of KClO₃ decomposed, 3 moles of O₂ are produced. So, to determine how many moles of O₂ are produced by decomposing 12 moles of KClO₃, we can use the following proportion:

2 moles KClO₃ / 3 moles O₂ = 12 moles KClO₃ / x moles O₂

where x is the number of moles of O₂ produced.

Solving for x, we get:

x = (3 moles O₂)(12 moles KClO₃) / (2 moles KClO₃)

x = 18 moles O₂

Therefore, 12 moles of KClO₃ can produce 18 moles of O₂.

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