The given reaction between FeS and oxygen gas giving ferric oxide and sulphur dioxide can be balanced as follows:
[tex]\rm 4 FeS+ 7O_{2} \rightarrow 2Fe_{2}O_{3} + 4SO_{2}[/tex]
What is balanced chemical equations?The balanced chemical equation of a reaction represent the perfect stoichiometry of all the reactants and products. It must obey the law of conservation of mass.
Hence, the total mass in the reactant side must be equal to the total mass in the product side. The given reaction between ferrous sulphide and oxygen gas giving sulphur dioxide and ferric oxide can be balanced as written above.
Here, 4 moles of FeS reacts with 7 moles of O₂ giving 2 moles of Fe₂O₃ and 4 moles of SO₂ gas. Here each element has the same number in both reactants side and product side.
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A 75 kg Skydiver is spotted at a height of 1000 m above the Earth's surface how much GPE does the skydiver possess
Answer:
735,000
Explanation:
75 × 9.8
Which of the following ions is soluble in water when paired with Ca²+, according
to the solubility rules chart?
Chloride (Cl-)
Hydroxide (OH-)
Carbonate (CO3^ 2-)
Sulfate (SO4^2-)
In the following ions, the one which is soluble in water when paired with Ca²+, according to the solubility rules chart is Cl-.
What is solubility rules chart?
Solubility is applicable to many laboratory processes and is also important in medicine. Some ions can be toxic when they separate in a solution but are helpful as part of a compound.
Solubility rules chart is a chart that helps us to find which anion is soluble in water with which cation.
Given is the Ca²⁺ cation and according to the solubility rules chart, Chloride (Cl⁻) - soluble in water
Hydroxide (OH⁻) - very slightly soluble
Carbonate (CO3²⁻) - insoluble
Sulfate (SO4²⁻) - very slightly soluble
Therefore, in the following ions, the one which is soluble in water when paired with Ca²+, according to the solubility rules chart is Cl-.
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Answer:
Chloride (Cl-)
Explanation:
Please Help this is another question its a chemistry Question I will award Brainliest
The electron that has returned to ground state is 5.
What is the ground state?In the case of an atom, the ground state refers to the lowest possible energy level that an electron can occupy. This is the energy level closest to the nucleus and is often referred to as the "1s" orbital.
Electrons can occupy higher energy levels by absorbing energy and moving to an excited state, but they will naturally return to the ground state by releasing the excess energy in the form of electromagnetic radiation, such as light.
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which of the following compounds would form precipitates in an aqueous solution? NaCN, Na2CO3, FeSO4, ZnS, Ca(OH)2, CuCO3
The compounds that would form precipitates are; CuCO3 and Ca(OH)2 and ZnS
Why do some compounds form precipitates in aqueous solution?Some compounds form precipitates in aqueous solutions because their solubility decreases as the temperature or concentration of the solution changes. When the solubility limit of the compound is reached, the excess solid particles will no longer dissolve and will start to form a solid precipitate.
Precipitation reactions can be useful in analytical chemistry for detecting and identifying ions in solution. They can also be used in industrial processes, such as the purification of metals and the removal of impurities from wastewater.
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SEP Plan an Investigation Plan an investigation to determine the percentage by mass of cashews and almonds in a jar of mixed nuts
the percent by mass of cashews and almonds can be determined by the Percentage by mass of X = (mass of X / total mass of mixed nuts) x 100%
A possible plan to determine the percentage by mass of cashews and almonds in a jar of mixed nuts could be:
Obtain a sample of the mixed nuts and weigh it to determine the total mass of the sample.
Separate the cashews and almonds from the rest of the nuts in the sample.
Weigh the separated cashews and record the mass.
Weigh the separated almonds and record the mass.
Calculate the percentage by mass of cashews and almonds in the mixed nuts by using the following formulas:
Percentage by mass of cashews = (mass of cashews / total mass of mixed nuts) x 100%
Percentage by mass of almonds = (mass of almonds / total mass of mixed nuts) x 100%
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Why are coal, oil, and natural gas all classified as "fossil" fuels? Responses They are all formed from ancient organic material that was buried under many layers of sediment and not allowed to decay. They are all formed from ancient organic material that was buried under many layers of sediment and not allowed to decay. Radioactive dating estimates the age of the organisms as formed from to prehistoric times. Radioactive dating estimates the age of the organisms as formed from to prehistoric times. They often contain the impressions of organisms when removed from the ground. They often contain the impressions of organisms when removed from the ground. They are all formed from ancient inorganic material that was covered by seawater for millions of years.
They are all formed from ancient organic material that was buried under many layers of sediment and not allowed to decay.
What are organic materials?
Organic materials are those that contain carbon and hydrogen atoms. These materials are typically derived from living organisms or their remains, such as plants and animals. Organic materials can be found in various forms such as solids, liquids, and gases. Some examples of organic materials include wood, paper, cotton, wool, leather, petroleum, and natural gas. These materials are used in a wide range of applications, from building construction to clothing production to energy generation.To know more about organic materials, click the link given below:
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If 10 J of heat is added to 2 g of gold, how much does the temperature increase? The specific heat of gold is 0.129 J/(g·°C)
Answer:
you can use the formula for heat capacity to calculate the change in temperature:
Q = m * c * ΔT
where Q is the heat added, m is the mass of the substance, c is the specific heat capacity of the substance, and ΔT is the change in temperature.
Plugging in the values given, we get:
10 J = 0.002 kg * 0.129 J/(g·°C) * ΔT
Simplifying and solving for ΔT, we get:
ΔT = 10 J / (0.002 kg * 0.129 J/(g·°C))
ΔT = 308.53 °C
Therefore, the temperature of the gold increases by approximately 308.53 °C when 10 J of heat is added to 2 g of gold.
please help and put explanation please
By placing a thermometer throughout the reaction mixture to observe temperature changes, endothermic and exothermic reaction can be identified.
What are endothermic and exothermic reaction?Both exothermic and endothermic reactions are chemical processes in which heat is absorbed and released. Photosynthesis is a nice example of such an endothermic process. An example of just an exothermic process is combustion.
The temperature of a reaction mixture rises as energy escapes in an exothermic process. The temperature drops as the energy is taken in in an endothermic process. Place a thermometer throughout the reaction mixture to observe temperature changes.
Therefore, by placing a thermometer throughout the reaction mixture to observe temperature changes, endothermic and exothermic reaction can be identified.
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Hydrochloric acid and sodium hydroxide react as follows:
HCI + NaOH → H₂O + NaCl
Calculate the mass of NaCl formed when 40.0 grams of HCI
and 40.0 grams of NaOH react?
Molar mass of HCI = 36.5 g/mol
Molar mass of NaOH = 40.0 g/mol
Molar mass of NaCl = 58.5 g/mol
g
Your answer should be rounded to three significant figures. Do not include
units in your answer.
The mass of NaCl is 58.5 g
What is the mole?The mole is a fundamental unit of measurement used in chemistry to express the amount of a substance. One mole of a substance is defined as the amount of that substance that contains the same number of entities, such as atoms, molecules, or ions, as there are in 12 grams of carbon-12. This number is known as Avogadro's number and is approximately 6.02 x 10^23.
Number of moles of NaOH = 40 g/40 g/mol = 1 mole
Since the reaction is 1:1
Mass of NaCl formed = 1 moles * 58.5 g/mol = 58.5 g
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How much water, in grams, can be made from 8.73 × 10^24 hydrogen molecules?
Explanation:
Refer to pic..........
4. In an experiment, 170.9 g of C_{2}*H_{4} was reacted with 52.75L of , 64.1 g of C*O_{2} is produced .What is the limiting reagent? ) What is the percent yield of this reaction?
C2H4 is the limiting chemical because the ratio of C2H4 to O2 is below the stoichiometric ratio.and the reaction's percent yield is 40.7%.
What is the limiting reagent?The limiting reagent or reactant in a chemical process is the one that controls how much product is created. Because elements and compounds respond in an equilibrium chemical formula according to their mole ratios, a limiting reactant is necessary.
C2H4 + O2 CO2 + H2O can be used to calculate the limiting reagent and percent output.
C2H4 has a mass of 170.9 g.
O2 has an overall volume of 52.75 L.
The amount of CO2 generated is 64.1 g.
Calculating the amounts (in moles) of each reactant and comparing them to the stoichiometric ratio in the balanced solution will help us identify the limiting reagent.
The molecular mass of C2H4 can be used to determine how much is present:
17.9 g C2H4 divided by (2 x 12.01 g/mol + 4 x 1.01 g/mol) results in 3.58 mol C2H4.
The ideal law of gases can be used to determine the quantity of O2:
PV/RT equals (1 atm)(52.75 L)/(0.0821 L atm/mol K)(298 K) = 2.16 mol O2 for n(O2).
Then, C2H4:O2 = 3.58 mol; 2.16 mol; 1.66 mol; 1
C2H4 to O2 stoichiometric ratio is 1 to 3.
C2H4 is the limiting reactant because the ratio of C2H4 to O2 is lower than the stoichiometric ratio. This implies that the O2 will exhaust itself completely before the C2H4 does as well.
We can use the mole fraction of C2H4 to CO2 in the balanced equation to calculate the potential yield of CO2:
1 mol C2H4 results in 1 mol CO2.
Theoretically, 3.58 mol C2H4 1 mol CO2/1 mol C2H4 44.01 g/mol = 157.3 g CO2 is the output of CO2.
To determine the percent yield, multiply the result by 100% after dividing the real yield by the theoretical yield:
(Actual yield / Theoretical yield) / 100% = Percent return
The amount of CO2 that actually occurred is 64.1 g. The percent yield is therefore: Percent yield = (64.1 g/157.3 g) 100% = 40.7%
As a result, C2H4 serves as the limiting reactant, and the reaction's percent yield is 40.7%.
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Why did von Helmont think that plants get their nourishment from soil?
Von Helmont think that plants get their nourishment from soil because he concluded an experiment and watered the plant after which he came to know that.
Plant growth is the ability of a plant to develop its roots in length, sets in length, and breadth in girth. Plant growth occurs in four phases. These stages are as follows...
Plant seeding, germination, and seedling formation all increase.
John Baptista van Helmont (1580-1644) contributed to the understanding of photosynthesis. He planted a willow tree in a measured amount of dirt. After five years, he observed that the willow tree weighted around 74 kg more than it did when he first planted it. Van Helmont decided that plant development could not be solely attributable to soil minerals because the weight of the soil had scarcely altered. He assumed that the increased plant material had come only from the water.
For the first time, this invalidated the Ancient Greeks' earlier idea that plants grew bulk by absorbing minerals from the earth. Van Helmont was the first to put this theory to the test and discover it to be false.
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Positive ∆H means that the reaction tends to go forwards.
Negative ∆H means that the reaction tends to go in reverse.
Group of answer choices
True. Positive means forwards and negative means reverse.
False. Atoms want to be in the lowest energy state.
The statement "Positive ∆H means that the reaction tends to go forwards. Negative ∆H means that the reaction tends to go in reverse" is generally true.
What are the types of reactions?When the enthalpy change is positive, the reaction is endothermic, which means that heat is taken in by the system from the environment. When the reaction progresses towards a more stable state with lower energy, this often leads to a rise in the energy of the reactants and an increase in the possibility that the reaction will proceed further.A negative H, on the other hand, denotes an exothermic process, in which the system releases heat into the environment. The energy of the reactants normally decreases as a result and the possibility that the reaction will proceed in the other direction as it progresses towards a more stable state with lower energy increases.learn more about ∆H here
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What is the pH of a solution that has a [OH-] = 5.8 x 10^-9
A. 8.2
B. 5.8
C. 9.8
D. 4.2
The pH of a solution that has a [OH-] = 5.8 x 10⁻⁹ is 5.76.
What is pH?
A pH scale is a tool for measuring acids and bases. The scale ranges from 0-14. Range of 0-6 represents acids and range of 8-14 represents bases. The value of pH 7 represents neutral solution.
pH = -log [H+]
Also, pH = 14 - pOH
Given,
[OH-] = 5.8 x 10⁻⁹
pOH = -log [OH-]
pOH = 9 - 0.763 = 8.23
Hence, pH = 14 - 8.23 = 5.76
Therefore, the pH of a solution that has a [OH-] = 5.8 x 10⁻⁹ is 5.76.
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If 5.00 g of sodium chloride is dissolved in 20.0 mL of solution at room temperature, is the solution saturated,supersaturated, or unsaturated? (The molarity of a saturated NaCl solution at room temperature is 5.98 M.)
Answer:
First, we need to calculate the molarity of the solution:
Molarity = moles of solute / liters of solution
We know the mass of solute (5.00 g) and the volume of solution (20.0 mL = 0.0200 L). To find the moles of solute, we need to divide the mass by the molar mass of NaCl:
moles of NaCl = 5.00 g / 58.44 g/mol = 0.0855 mol
Now we can calculate the molarity:
Molarity = 0.0855 mol / 0.0200 L = 4.28 M
The molarity of the solution is less than the molarity of a saturated NaCl solution at room temperature (5.98 M), so the solution is unsaturated.
Consider the titration of 30. 0 mL of 0. 050 M NH3 with 0. 025 M. HCl. Calculate the PH after the following volumes of titrant have been added 0 ml 20 mL 59. 1 mL 60. 0 mL 71. 4 mL 73. 4 mL
The pH after the following volumes of titrant have been added 0 ml 20 mL 59. 1 mL 60. 0 mL 71. 4 mL 73. 4 mL are 11.89, 11.89, 8.45, 8.45, 7.98, 8.95 respectively.
The reaction between NH3 and HCl can be represented by the following equation: NH3 + HCl → NH4+ + Cl-
To calculate the pH after different volumes of titrant have been added, we need to determine the amount of titrant that has reacted with the analyte and the resulting concentration of the products.
A. 0 mL of titrant (initial state)
At the start, there is no titrant added to the analyte, so the concentration of NH3 is 0.050 M. NH3 is a weak base, so we can use the Kb expression to calculate the concentration of OH-:
[tex]Kb = [NH4+][OH-] / [NH3][/tex]
[tex]1.8 * 10^{-5} = x^2 / (0.050 - x)[/tex]
initial concentration of NH3 is much greater than the initial concentration of HCl, we can assume that the concentration of NH3 does not change significantly during the titration.
[tex]Kb = x^2 / 0.050\\x = \sqrt{Kb * 0.050} = 1.3 * 10^{-3} M[/tex]
The concentration of OH- is equal to [tex]1.3 * 10^{-3} M[/tex], so we can calculate the pH:
[tex]pH = 14 - pOH = 14 - (-log[OH-]) = 11.89[/tex]
Therefore, the pH at the start of the titration is 11.89.
B. 20 mL of titrant
After adding 20 mL of 0.025 M HCl, the volume of the solution is 50 mL (30 mL NH3 + 20 mL HCl). The moles of HCl added is:
moles of HCl = volume x concentration = 0.020 L x 0.025 mol/L = 5 x 10^-4 mol
Since the reaction is a 1:1 reaction, the moles of NH3 remaining is equal to the moles of HCl added.
concentration of NH3 = moles of NH3 / volume of NH3 = (0.050 mol/L x 0.030 L - 5 x 10^-4 mol) / 0.030 L = 0.048 mol/L
Since the concentration of NH3 has decreased, we need to recalculate the concentration of OH- using the new concentration of NH3:
[tex]Kb = [NH4+][OH-] / [NH3]\\1.8 * 10^{-5} = x^2 / (0.048 - x)[/tex]
Solving for x, we get:
[tex]x = 1.3 * 10^{-3} M[/tex]
The concentration of OH- is still [tex]x = 1.3 * 10^{-3} M[/tex], so we can calculate the pH:
pH = 14 - pOH = 14 - (-log[OH-]) = 11.89
Therefore, the pH after adding 20 mL of titrant is still 11.89.
Similarly for C. 59.1 mL of titrant
The pH after adding 59.1 mL of titrant is 8.45.
D. 60 mL of titrant
The pH after adding 60 mL of titrant is 8.45.
E. 71.4 mL of titrant
The pH after adding 71.4 mL of titrant is 7.98.
F. 73.4 mL of titrant
The pH after adding 73.4 mL of titrant is 8.95.
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If 6. 5 moles of nitrogen gas react with 17. 8 moles of hydrogen gas, according to the following reaction, what mass of ammonia would be produced
If 6. 5 moles of nitrogen gas react with 17. 8 moles of hydrogen gas, mass of ammonia that would be produced is 34g.
In the reaction N2 + 3H2 → 2NH3, 6.5 moles of nitrogen gas and 17.8 moles of hydrogen gas will react to produce 2 moles of ammonia. To calculate the mass of ammonia produced, we can use the formula:
Mass = moles x molar mass
So, in this case, the mass of ammonia produced would be:
Mass = 2 moles x 17 g/mol = 34 g
The mass of one mole of a material, given in grams per mole (g/mol), is known as molar mass. It is computed by multiplying the atomic masses of all the atoms in a molecule or formula unit.
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Restate this using moles: “I have 6.02x10 23 baseballs.”
Answer: " I have one mole of baseballs "
Explanation:
Calculate the number of miles in 20g of neon
The number of moles in 20g of Ne is 1 mole.
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,
Mass of Ne = 20g
Molar mass of Ne = 20 g/mole
Moles = mass ÷ molar mass
= 20 ÷ 20
= 1 mole
Therefore, the number of moles in 20g of Ne is 1 mole.
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The question has spelling mistake. Probably the question is:
Calculate the number of moles in 20g of neon.
Think about how the geologic time scale was created and how it is divided. Then answer the following questions.
How did scientists form the geologic time scale?
•How is this scale organized?
•What processes changed the Earth's environment during Precambrian time?
Eons are the current name for the large units of time that make up the geologic time scale. Eons can be further broken down into eras, which are then further broken down into periods.
What is geological time scale ?The evolution of life on Earth is frequently depicted alongside the geologic time scale. It occasionally also refers to significant occurrences on Earth, such as the creation of the world's great mountains or the demise of the dinosaurs.
1. Since fossils revealed similar organisms coexisting on Earth at various periods of time, scientists divided Earth's history into several periods. To keep track of how Earth has changed, they gave each period of time a name.
For instance, the Jurassic period included a large number of dinosaurs. Fossils of the planet's very earliest green vegetation from the Ordovician period have been discovered. European scientists made up a large portion of those who originally gave historical periods on Earth names.
2. During the Precambrian age in earth, multicellular organisms are believed to be evolved. The development of life significantly started at the Precambrian era.
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Carter is investigating how water changes states. He observes a pot of water boiling on the stove.
O heat
What type of energy is being transferred to the pot to make the water boil?
Olight
4
potential
sound
Nishable
The type of energy being transferred to the pot to make the water boil is heat energy. The heat energy is transferred from the stove to the pot, which then transfers the heat energy to the water molecules.
What Is the Definition of Sound Energy?Simply said, sound energy is a result of vibrations passing through a substance. Sound waves can travel through solids, liquids, and gases. When a force, such as sound or pressure, causes an item or substance to vibrate, the result is sound energy. Waves of that energy pass through the substance. We refer to the sound waves as kinetic mechanical energy.
What Kinds of Sound Energy Are There?The wind chime's rich, bright tones or its high, delicate tingling Traffic noises include the rumbling of engines, screeching tyres, loud radios, and squeaking brakes. infants' cries and babbling. As the water molecules absorb the heat energy, they begin to move faster and eventually reach a point where they turn into vapor, causing the water to boil.
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Determine if the following reaction is a redox reaction; if it is, select the correct overall oxidation-reduction reaction. (You may need to use Tables A-1, A-2, A-3, and A-4 in your CRG for oxidation numbers.)
N2(g) + 3H2(g) - 2NH3(g)
Indeed, 2N + 2H results from n2 + 3H2.An oxidation reaction is a process that involves chemical addition of oxygen, and a reduction reaction is a process that involves a removal of oxygen.
How can you tell if a response is redox in nature?Redox reactions are those in which there is a change in the oxidation number, with both a gain and a drop in number.The reaction called non-redox if this fails to take place.
How can a redox reaction be differentiated between oxidation and reduction?You must figure out each atom's oxidation values prior to and following the reaction in order to identify what happens toward which elements inside a redox reaction.The prospective charge of the an atom in its cationic state is represented by oxidation numbers.In a reaction, an atom is reduced if its oxidation number falls.
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Which has the higher percent of aluminum, A1 2 O3 or A1(NO3)3?
Answer:
I think it is Al2O3
Which of the following must be true of a particle to allow
it to dissolve in water?
A. It must have areas of neutral charge.
B. It must have a nonpolar covalent bond.
C. It must have a full or partial charge.
D. It must have the ability to form London dispersion forces.
C. It must have a full or partial charge.
What happens when particles dissolve in water?When a particle dissolves in water, it becomes surrounded by water molecules. The polarity of water molecules allows them to interact with other polar molecules, including ions or molecules that have a full or partial charge.
These interactions between the charged particle and water molecules help to break apart the intermolecular forces holding the particle together and allow it to dissolve in water.
Particles that lack a full or partial charge, such as those with nonpolar covalent bonds or areas of neutral charge, typically do not dissolve well in water.
These types of particles do not have a strong attraction to the polar water molecules and do not experience the same breaking of intermolecular forces that charged particles do.
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Please help!
(Thank you so much 2 more after this)
How many protons, neutrons,
and electrons are in this ion?
204 Hg2+
80
A. 80 pt, 124 nº, 80 e-
B. 80 pt, 124 n°, 82 e-
C. 102 p¹, 102 nº, 104 e-
D. 80 p+, 124 nº, 78 e-
Answer:
D. 80 p+, 124 nº, 78 e-
Explanation:
The atomic number of mercury (Hg) is 80, which means it has 80 protons and 80 electrons in a neutral atom. The ion given is Hg2+ which means it has lost two electrons, so the number of electrons is now 80 - 2 = 78.
The mass number of mercury is 204, which means it has 204 nucleons in its nucleus. Since the ion is Hg2+, there are two mercury atoms present. Therefore, the total number of protons is 2 × 80 = 160, and the total number of neutrons is 204 - 160 = 44.
So the answer is D) 80 p+, 124 nº, 78 e-
A 1. 00-L vessel at 400 °C contains the following equilibrium concentrations: N2, 1. 00 M; H2, 0. 50 M; and NH3, 0. 25 M. How many moles of hydrogen must be removed from the vessel to increase the concentration of nitrogen to 1. 1 M? The equilibrium reaction is
N2(g)+3H2(g)⇌2NH3(g)
The number of the moles of hydrogen must be removed from the vessel to increase the concentration of nitrogen to 1. 1 M is 0.334 mol.
The chemical equation is as follows :
N₂ (g) + 3H₂ (g) ⇄ 2NH₃ (g)
Initial 1.00 M 0.50 M 0.25 M
Change + 0.1 -0.1 M
Eq. 1.1 M x 0.05 M
The equilibrium concentration is as :
Kc = [NH₃]² / [ N₂ ] [H₂]³
Kc = (0.25)² / (1) (0.50)³
of Kc = 0.50
Kc = [NH₃]² / [ N₂ ] [H₂]³
0.50 = (0.05)² / (1.1) (x)³
x = 0.166 M
The number of the moles of the hydrogen removed = 0.50 - 0.166
The number of the moles of the hydrogen removed = 0.334 mol of H₂.
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How are cellular respiration and photosynthesis related?
A.
They both use ATP energy to produce radiant energy.
B.
They both use light energy to produce chemical energy.
C.
All of their chemical products are gases found in the atmosphere.
D.
The chemical products of one are the reactants of the other.
Answer:
I'm pretty sure its A
Explanation:
I hope this helps
The gaseous production of a reaction is collected in a 25.0l container at 27c. The pressure of the container is 300.0 kpa and the gas has a mass of 96.0 g. What is the formula mass of the gas?
Answer:
To determine the formula mass of the gas, we can use the ideal gas law:
PV = nRT
where P is the pressure of the gas, V is the volume of the container, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature of the gas in Kelvin.
First, we need to convert the given temperature of 27°C to Kelvin:
T = 27°C + 273.15 = 300.15 K
Next, we can rearrange the ideal gas law to solve for the number of moles of gas:
n = PV/RT
where P = 300.0 kPa, V = 25.0 L, R = 8.31 J/(mol·K), and T = 300.15 K.
n = (300.0 kPa)(25.0 L)/(8.31 J/(mol·K) x 300.15 K) ≈ 30.12 mol
Now, we can calculate the molar mass (formula mass) of the gas using its mass and the number of moles:
molar mass = mass / number of moles
where the mass is given as 96.0 g.
molar mass = 96.0 g / 30.12 mol ≈ 3.19 g/mol
Therefore, the formula mass of the gas is approximately 3.19 g/mol.
Explanation:
Answer:
3.19
Explanation:
2KClO3 → 2KCl + 3O2
Use this balanced chemical equation (the decomposition of potassium chlorate that produces potassium chloride and oxygen gas) to solve the following problems. Show all work and answer with the correct units and significant figures.
a. How many moles of oxygen gas are produced if 4 moles of potassium chlorate decomposes?
b. If 4.50 moles of potassium chloride are produced, what mass of oxygen gas is produced?
c. If 5.0 g of potassium chlorate decomposes, how many grams of potassium chloride are produced?
Consequently, 4.50 milligrams of KCl yields 216 g of O2 from 4 moles of KClO3, which in turn produces 6 mole of O2. Potassium chloride is created in amounts of 0.0408 mol KCl.
What circumstances necessitate mole concern?A suspicious mole, on the other hand, is asymmetrical, that means that when it is split in half, its two sides have a different appearance. The typical characteristic of benign moles is circular borders. Wavy borders are frequently seen on moles that have malignancy. If the border isn't smooth, get your belongings out of there.
2 mol KClO3 / 3 mol O2, which equals 4 mol KClO3 / x.
The answer to the equation for x is: x = (3 mol O2 4 mol KClO3) / 2 mmol KClO3 = 6 mol O2.
As a result, 4 moles ions KClO3 result in 6 moles of O2.
2.50 mol KClO3 / 2.50 mol KCl = 2.50 mol KClO3 / x
The to the equation for x is: x = (2 mol KCl 4.50 mol KClO3) / 2 mol KClO3 = 4.50 mol KCl.
We can calculate the amount of O2 produced using the mole fraction of KClO3 to O2 now that we know humans have 4.50 mole of KCl:
2.50 mol KClO3/3.0 mol O2 ≈ 4.50 mol KClO3/x
In order to find x, we must divide 3 mol O2 by 4.50 mol KClO3 and 2 mol KClO3 by 6.75 mol O2.
In order to translate from moles to grams, we can utilize the molecular concentration of oxygen:
216 g O2 is produced by multiplying 6.75 mol O2 by 32.00 g/mol.
Hence, 216 g of O2 are created from 4.50 moles of KCl.
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natural gas disanvantages
Answer: Highly Inflammable. Natural gas is a highly flammable substance that can cause significantly more damage should there be an accident. ...
Greenhouse Gas Emissions. ...
Non-Renewable. ...
Not Easy to Use. ...
Expensive Pipelines.
Explanation: