A balloon filled with exhaled air has a volume of 16.0 L at 1.08 atm. If the balloon is perfectly elastic, what is the volume of the balloon if it is taken into the mountains where the pressure is is 0.877 atm and the temperature is the same.

The theoretical yield of carbonic acid is 12 %.

What is carbon dioxide ?

One part carbon and two parts oxygen make up the gas called carbon dioxide. Its usage by plants to create carbohydrates during a process known as photosynthesis makes it one of the most significant gases on the planet.

What is reaction ?

The transformation of one or more reactants into one or more new products is referred to as a chemical reaction. Substances are made of chemical constituents or compounds. The transformation of one or more reactants into one or more new products is referred to as a chemical reaction. Substances are made of chemical constituents or compounds.

Therefore, The theoretical yield of carbonic acid is 12 %.

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Distance 11.143 ft or thereabouts is Distance roughly how far the tree extends from its tip to its base.

Distance is the sum of an object's movements, regardless of direction. Distance can be defined as the amount of space an object has covered, regardless of its starting and ending position.

We obtain a quadratic equation by simplifying and expanding the left side:

2y^2 - 288y + 144 = 0

The quadratic formula is used to solve for y, and the result is: y = [288 (2882 - 4(2)(144)]

/(2(2))

y = [288 ± √58368]

y = 0.857 ft or /4 y = 84 foot

The only viable answer is: y 0.857 ft since y cannot be higher than 12 ft (the whole height of the tree).

The result of changing this number for y in the equation x + y = 12 ft is: x + 0.857 ft = 12 ft x 11.143 ft

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The density of the solid cylinder is calculated to be as  approximately 17.7 g/cm³.

The mass per unit of volume of a substance is known as density and symbol that is mostly used for density is ρ.

As the formula for the density of an object is:

density = mass / volume

volume = π x radius² x height

volume = π x (3cm)² x 10cm

volume = 282.74 cm³

mass = 5kg x 1000g/kg = 5000g

density = mass / volume

density = 5000g / 282.74 cm³

density ≈ 17.7 g/cm³

Therefore, the density of the solid cylinder is approximately 17.7 g/cm³.

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The cell organelles in the diagram are lysosome and nucleus.

This is referred to as a small structure in a cell that is surrounded by a membrane and has specific types of functions based on their respective properties.

The nucleus is a type of organelle which is involved in the control of the activities of the cells such as controlling of the genetical information of the cell and thus the heredity characteristics of an organism and control of the protein and enzyme synthesis. Another organelle is referred to as the lysosomes which functions as the digestive system of the cell, serving both to degrade material taken up from outside the cell and to digest obsolete components of the cell itself.

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Answer:

The correct answer is D. nucleons.

The law of conservation of nucleon number, also known as the law of conservation of mass number, states that the total number of nucleons (protons and neutrons) in a closed system remains constant before and after a nuclear reaction. This means that the sum of the mass numbers of the reactants must be equal to the sum of the mass numbers of the products. Therefore, the total number of nucleons is conserved in a nuclear reaction.

So, the law of conservation of nucleon number says that the total number of nucleons (protons and neutrons) is conserved before and after the reaction.

The Chlorine anlon provides a strong attraction to the potassium ion. That is option A.

An anion is defined as the negatively-charged ions which means that they have more electrons than protons due to having gained one or more electrons.

A cation is defined as the positively-charged ions which means that atoms or groups of atoms that have more protons than electrons due to having lost one or more electrons.

The potassium is a cation while the chlorine atom is an anion in the crystal salts.

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Moreover, injuries may offer a hint or description of the culprit. The type and location of the injury may give away information about the suspect's physical attributes, such as height, weight, or age.

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Answer:

2.5 moles of aluminum oxide will form when all 5.0 moles of aluminum are used up.

Explanation:

The balanced chemical equation for the reaction between aluminum (Al) and oxygen (O2) to form aluminum oxide (Al2O3) is:

4 Al + 3 O2 → 2 Al2O3

This equation shows that 4 moles of aluminum react with 3 moles of oxygen to form 2 moles of aluminum oxide.

According to the problem, we have 5.0 mol of aluminum, which is more than enough to react with the oxygen available, and the limiting reagent in this reaction will be aluminum. Therefore, we need to use the mole ratio from the balanced equation to find out how many moles of aluminum oxide will form when all 5.0 moles of aluminum are used up.

From the equation, we can see that for every 4 moles of aluminum, 2 moles of aluminum oxide will form. Therefore, the mole ratio of aluminum to aluminum oxide is 4:2, or simplified, 2:1.

Using this mole ratio, we can calculate the number of moles of aluminum oxide that will form when all 5.0 moles of aluminum react:

5.0 mol Al × (2 mol Al2O3/4 mol Al) = 2.5 mol Al2O3

Therefore, 2.5 moles of aluminum oxide will form when all 5.0 moles of aluminum are used up.

The molarity of the diluted solution is 0.047 M. Molarity is commonly used in chemistry to quantify the concentration of a solute in a solution and to calculate the amount of reactants required for a chemical reaction.

What is Molarity?

Molarity is a unit of concentration that measures the number of moles of a solute dissolved in one liter of a solution. It is expressed in units of moles per liter (mol/L or M). For example, a solution with a molarity of 0.5 M contains 0.5 moles of solute per liter of solution.

To find the molarity of the diluted solution, we can use the equation:

M1V1 = M2V2

Where:

M1 = initial molarity of the solution

V1 = initial volume of the solution

M2 = final molarity of the solution

V2 = final volume of the solution

We can rearrange the equation to solve for M2:

M2 = (M1V1) / V2

Plugging in the given values, we get:

M2 = (2.03 M x 93.2 mL) / 4.01 L

M2 = 0.047 M

Therefore, the molarity of the diluted solution is 0.047 M.

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Answer:

0.047

Explanation:

acellus

The limiting reactant is completely used up in the reaction. There will be an excess of other reactants at the end of the reaction. The limiting reactant dictates the amount of product.

Reactant will be the limiting reactant depends on the molar ratios of all the reactants in the experiment (and the coefficients in the balanced reaction equation), so it will absolutely vary depending on the reaction setup and conditions, which is why it cannot always be the same for a given reaction.

Because the molar ratios of the reactants dictate which of them will be the limiting one, it is not true that the one with the lowest mass will always be the limiting reactant.

Therefore, The limiting reactant is completely used up in the reaction. There will be an excess of other reactants at the end of the reaction.

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The density of a substance is defined as its mass per unit volume. Therefore, we can use the formula:

density = mass / volume

to find the volume of the solution.

Rearranging this formula, we get:

volume = mass / density

Substituting the given values, we get:

volume = 164 g / 0.75 g/mL

volume = 218.67 mL

Therefore, the volume of the solution is 218.67 mL

Answer:the mass of the sample is 90 grams.

Explanation:

Answer:

+2.

Explanation:

Each phosphate ion (PO43-) has a charge of -3. Since there are two phosphate ions in the formula, the total negative charge from the phosphate ions is -6.

In order to balance the negative charge, the sum of the positive charges from the X3+ ions must be +6.

the charge of element X can be calculated as follows:

X3+ × 3 = +6

X3+ = +2

So the charge of element X in X3(PO4)2 is +2.

The parts of the atom is as follows:

A.) Electrons

ElectronsB.) Neurons

ElectronsB.) NeuronsC.) Protons

An atom is defined as the indivisible part of an element that cannot further be broken down into smaller particles through a chemical process.

The various parts of an atom include the following:

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Answer:

A. electron

B. neutron

C. proton

Explanation:

Folklore is a compilation of made-up stories about people or animals, as opposed to myth, which has as its central theme the origins of a people and is frequently sacred. Important components of the folklore practice include superstitions and unfounded notions.

What cultural connections do myths and folklore have?

A society's myths and folklore are frequently the foundation upon which its culture is constructed. The origins of most cultural practices and beliefs can be found in the myths of a community. The moral limits and fundamental rules for how members of a community should live are established by myths and legends.

Folktales are regarded as tales that have been handed down to current generations from the ancestors of a specific group of people. These typically offer a lesson. On the other hand, a myth is a traditional tale from early history or one that explains a natural occurrence, often involving supernatural entities.

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UN1449 is a UN number that is used to identify a specific hazardous material or substance during transportation. To determine the subsidiary class of UN1449, we need to consult the relevant Schedule 1 of the UN Model Regulations or the applicable national regulations.

The subsidiary class of a hazardous material is determined by its properties and characteristics, such as its physical state, chemical composition, toxicity, flammability, and reactivity. These properties help to identify the potential risks and hazards associated with the material and inform the appropriate measures for safe handling, storage, and transport.

In general, the subsidiary class of a hazardous material is indicated by a numerical code following the primary class, such as Class 3, Flammable Liquids, Packing Group II (UN1263). However, the exact classification and labeling requirements for hazardous materials depend on various factors, including the mode of transport, quantity, packaging, and destination.

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Answer:

B

Explanation:

this equation shows an alpha decay

The statement is incomplete, but I assume the missing word is "graphics card" or "GPU" and upgrading the usually speeds up the computer.

Why adding a Graphics card can improve sound or video quality?

Adding a dedicated graphics card can indeed improve the sound or video quality by offloading the processing of graphics-intensive tasks from the CPU to the GPU. This can result in smoother video playback, faster rendering of 3D graphics, and improved overall system performance.

It's also worth noting that upgrading other components, such as the RAM or CPU, can also improve system performance, not just the speed of the computer. Adding more RAM can help with multitasking and running memory-intensive applications, while upgrading the CPU can improve overall processing power and speed.

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Answer:

hyrdrifluoric acid

Explanation:

Answer:

To find the molar mass of BeCo3, we need to find the atomic masses of each element and add them together in the correct ratio:

Be: 9.01 g/mol

Co: 58.93 g/mol

O: 16.00 g/mol (there are three oxygen atoms)

Molar mass of BeCo3 = (1 x Be atomic mass) + (1 x Co atomic mass) + (3 x O atomic mass)

Molar mass of BeCo3 = (1 x 9.01 g/mol) + (1 x 58.93 g/mol) + (3 x 16.00 g/mol)

Molar mass of BeCo3 = 9.01 g/mol + 58.93 g/mol + 48.00 g/mol

Molar mass of BeCo3 = 115.94 g/mol

Therefore, the molar mass of BeCo3 is 115.94 g/mol.

The energy is stored in a spring that is compressed 0.850m is 213.125 J

Potential energy is the name for this accumulated energy. The accumulated potential energy as a result of a specific elastic object, such as a spring, deforming is known as the potential energy of the spring. It describes the labor involved in stretching the spring and is dependent on both the length of the stretch and the spring constant, k.

Given Data

We know that the expression for energy stored is given as

Energy = Ke

Substituting our given data we have

Energy = 0.5 x 500 N/m x (0.850m)2

     = 0.5 x 500 N/m x (0.850m x 0.850m)

     = 0.5 x 500 N/m x 0.7225m2

     = 213.125 J

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Answer & xplanation:

A. The electron arrangement for Si (atomic number 14) is: 1s² 2s² 2p⁶ 3s² 3p².

B. The electron arrangement for Ne (atomic number 10) is: 1s² 2s² 2p⁶.

C. B³+ is a cation, which means it has lost three electrons compared to neutral boron (B). Therefore, its electron arrangement is: 1s² 2s² 2p¹.

D. Cl¹⁻ is an anion, which means it has gained one electron compared to neutral chlorine (Cl). Therefore, its electron arrangement is: 1s² 2s² 2p⁶ 3s² 3p⁶.

Answer:

Explanation:

To solve this problem, we can use the equation:

q = mcΔT

where q is the heat absorbed or released, m is the mass of the substance, c is the specific heat, and ΔT is the change in temperature.

First, we can calculate the heat absorbed by the water:

q_water = (98 g) (4.18 J/g°C) (28.2°C - 23.7°C) = 1938.4 J

Next, we can calculate the heat released by the metal:

q_metal = -q_water = -1938.4 J

The negative sign indicates that the metal released heat to the water.

We can rearrange the equation to solve for the specific heat of the metal:

c = -q_metal / (mΔT)

c = -(-1938.4 J) / (39.9 g) (100.3°C - 28.2°C)

c = 0.387 J/g°C

Therefore, the specific heat of the metal is 0.387 J/g°C.

To identify the metal, we can compare its specific heat to known values for different metals. From the specific heat values of common metals, we can see that the metal is most likely aluminum (specific heat of 0.902 J/g°C), as it has a much lower specific heat than copper, iron, or lead.

To calculate the percent error, we can use the formula:

percent error = (|experimental value - accepted value| / accepted value) x 100%

The accepted specific heat of aluminum is 0.902 J/g°C.

percent error = (|0.387 J/g°C - 0.902 J/g°C| / 0.902 J/g°C) x 100%

percent error = 57.1%

Therefore, the percent error is 57.1%.

345.53 g of glucose can be produced from the given reaction, using 11.5 mol of CO2.

What is Photosynthesis Reaction?

Photosynthesis is a process by which plants, algae, and some bacteria convert carbon dioxide (CO2) and water (H2O) into organic compounds, such as glucose, using sunlight as the source of energy.

6 CO2 + 6 H2O + energy (sunlight) → C6H12O6 (glucose) + 6 O2

From the balanced equation, we know that 6 moles of carbon dioxide react to form 1 mole of glucose. Therefore, we can calculate the moles of glucose produced from 11.5 moles of CO2:

moles of glucose = 11.5 mol CO2 / 6 mol CO2 per mole of glucose = 1.9167 mol glucose

Next, we can use the molar mass of glucose to calculate the mass of glucose produced:

mass of glucose = moles of glucose x molar mass of glucose

mass of glucose = 1.9167 mol x 180.156 g/mol

mass of glucose = 345.53 g

Therefore, 345.53 g of glucose can be produced from the given reaction, using 11.5 mol of CO2.

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Group of linked genes acting as an allelic unit due to the suppression of crossing-over is called supergene.

Chromosomal region encompassing multiple neighboring genes that are inherited together because of close genetic linkage is called supergene.

The best examples of supergenes are the morphologically and genetically distinct sex chromosomes which has evolved independently in many groups of animals and plants. Sex chromosomes evolve from autosomes via mutation that causes its bearers to develop into a male or female.

Supergenes arise following the establishment of mutations at minimum of two sites, followed by sequential accumulation of additional mutations.

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Note: The question given on the portal is incomplete. Here is the complete question.

Question: What is the meaning of supergene?

When 28g of Fe(OH)₃ are made in this reaction then 31.4g of NaOH forms.

What is Mole concept?

The mole concept is a convenient method of expressing the amount of a substance.

Avogadro's number is the number of units in one mole of any substance and equals to 6 .02214076 × 1023. The units can be electrons, atoms, ions, or molecules.

No. of moles is defined as a particular no. of particles that we can calculate with the help of Avogadro’s number.

Given,

Mass of Fe(OH)₃ = 28g

We know that Molecular mass of NaOH = 40g

Molecular mass of Fe(OH)₃ = 106.8g

According to the equation given in question,

3 moles of NaOH forms 1 mol of Fe(OH)₃

Hence, 40×3 = 120g of NaOH forms 106.8g Fe(OH)₃

1g Fe(OH)₃ will formed by = 120÷106.8 g NaOH = 1.12g

28g of Fe(OH)₃ will formed by = 1.12×28 = 31.4g NaOH

Therefore, When 28g of Fe(OH)₃ are made in this reaction then 31.4g of NaOH forms.

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The ionization constant (Ka) for a 0.10 M solution of ethanoic acid with a pH of 2.88 is [tex]5.82 * 10^(^-^5^)[/tex]

The ratio of reactant to product amounts that is used to predict chemical behaviour is the definition of the equilibrium constant for a chemical process.

Ka = [H+][A-] / [HA]

where [H+] is the concentration of hydrogen ions, [A-] is the concentration of the conjugate base, and [HA] is the concentration of the weak acid.

For ethanoic acid (also known as acetic acid), the ionization reaction is:

CH3COOH + H2O ⇌ CH3COO- + H3O+

pH = -log[H3O+]

The Ka expression can now be written as:

[tex]Ka = (x)^2 / (0.10 - x)[/tex]

At equilibrium, the value of x is very small compared to 0.10 M, so we can make the approximation that 0.10 - x ≈ 0.10.

Therefore, we can simplify the Ka expression to:

[tex]Ka = x^2 / 0.10[/tex]

To solve for x, we can use the equilibrium concentration of [H3O+] we calculated earlier:

[tex]x = [H3O+] = 7.68 * 10^(^-^3^) M[/tex]

Substituting this value into the simplified Ka expression, we get:

[tex]Ka = (7.68 * 10^(^-^3^))^2 / 0.10 = 5.82 * 10^(^-^5^)[/tex]

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It should be noted that the right response is (b) Alcoholic KOH, which upon hydrolysis would produce the secondary alcohol propan-2-ol.

The reagent X should be able to add a nucleophile to the carbonyl carbon of CH3CHO, and the product formed should be capable of being hydrolyzed to give propan-2-ol.

Option (c) CH3MgI (Grignard reagent) is a strong nucleophile and can add to the carbonyl carbon of CH3CHO to form a tertiary alcohol. However, the product formed will be propan-2-ol (2-methylpropan-1-ol) instead of propan-2-ol (propanol). Therefore, option (c) can be eliminated.

Option (d) Alcoholic KCN is a nucleophilic reagent that can add to the carbonyl carbon of CH3CHO to form an intermediate that can be hydrolyzed to give a carboxylic acid. Therefore, option (d) can be eliminated.

However, since the reaction conditions are not specified, it is not possible to determine which of the two options is the correct answer. If the reaction is carried out under basic conditions, then option (a) would be the correct answer. If the reaction is carried out under acidic conditions, then option (b) would be the correct answer.

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Mass of Sample = 59.993 - 57.880 = 2.113 g

Mass of Sample after 1st Heating = 59.710 - 57.880 = 1.83 g

Mass of Water Removed = 2.113 - 1.83 = 0.283 g

Mass of Sample after 2nd Heating = 59.7 - 57.88 = 1.82 g

Mass of Water Removed = 1.83 - 1.82 = 0.01 g

Total Mass of Water lost = 0.293 g

Moles of Water lost = 0.293 / 18 = 0.01628

Mass of Anhydrate = 1.82 g

Now check the molar mass of each hydrate:

CuSO4.5H2O = 159.61 g/mol

ZnSO4.7H2O = 287.58 g/mol

BaCl2.2H2O = 244.26 g/mol

MgSO4.7H2O = 246.47 g/mol

Now, Check the mole ratio of Anhydrous Salt : Water to get the required stoichiometric coefficient of H2O.

For BaCl2.2H2O,

Answer: BaCl2.2H2O

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The empirical formula of the white powder is CH1.5N1O2.

To find the empirical formula of the white powder, we need to determine the ratios of the elements present in the sample. We can assume that the sample contains 100 g of the powder, and then convert the masses of each element to moles using their molar masses:

mass of C = 21.9 mg = 0.0219 g = 0.0018 mol

mass of H = 2.5 mg = 0.0025 g = 0.0025 mol

mass of N = 2.3 mg = 0.0023 g = 0.0017 mol

mass of O = 5.3 mg = 0.0053 g = 0.0033 mol

Next, we can divide each of the mole values by the smallest mole value to get the simplest whole number ratio of the elements:

C: 0.0018 mol / 0.0017 mol = 1.06 ≈ 1

H: 0.0025 mol / 0.0017 mol = 1.47 ≈ 1.5

N: 0.0017 mol / 0.0017 mol = 1

O: 0.0033 mol / 0.0017 mol = 1.94 ≈ 2

Therefore, the empirical formula of the white powder is CH1.5N1O2.

To check if this is consistent with the molecular formula for cocaine (C17H21NO4), we can calculate the molecular formula mass of the empirical formula and compare it to the molecular formula mass of cocaine:

Empirical formula mass = 13.5 g/mol (approximately)

Molecular formula mass of cocaine = 303.4 g/mol

The empirical formula mass is much smaller than the molecular formula mass of cocaine, so the empirical formula is not consistent with the molecular formula.

Therefore, this suggests that cocaine is a larger molecule, made up of many repeating units of CH1.5N1O2. To determine the molecular formula of cocaine, we would need additional information, such as the molecular mass of the compound.

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Answer:

Explanation:

Rutherford's gold foil experiment revealed that most of the alpha particles went right through the gold foil but only a couple got deflected, demonstrating that the atom has mostly empty space with a small, hard, positively charged nucleus. Because of this, Rutherford proposed the nuclear model of the atom.

Answer:

Hope this helps

Explanation:

Rutherford took a thin gold foil and made alpha race particles to pass through it. He saw that most of the particle passed straight through the gold foil . But some deflected in small angles and 1 in 12000 particles deflected/rebounded back.

These observation made Rutherford conclude that-

- Most of the place inside an atom is empty because particles passed straight through.

- some particles deflected in small angles meaning the positive charge in an atom occupies very less space.