A pure compound A gives off a gas when heated and is ultimately converted to another pure compound B. If the initial weight of A is 7.40 g and the final weight of B is 3.90 g, compute the percent mass of A that is attributable to the emitted gas.

Q: Use the balanced chemical equation below to calculate the number of grams of iron(II) phosphate that…

A: Limiting reagent is the reagent which is consumed in the chemical reaction completely. It decides…

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A: Given that -  Number of moles of acetylene = 0.095 mol    When acetylene  burnt with oxygen gas to…

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Q: potassium chlorate decomposed to potassium chloride and oxygen 1.00g of potassium is decomposed and…

A: Since the decomposition reaction of potassium chlorate is given by  2 KClO3 -----> 2 KCl + 3 O2…

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A: One mole of an element contain Avogadro's number 6.02×1023 of atoms of that element. Therefore, 1…

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A: Given:Mass of Magnesium = 0.039 g.Molar mass of Mg = 24.305 g/mol.Balanced chemical reaction is…

Q: What volume of hydrogen fluoride would be produced

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Q: (CxHy) is a hydrocarbon gas sample which  has a weight of 0.5653g. This sample is burned completely…

A: Given the weight of the hydrocarbon(CxHy) sample = 0.5653 g The C present in a hydrocarbon(CxHy) is…

Q: A 0.4230 g sample of impure sodium nitrate (contains sodium nitrate plus inert ingredients) was…

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A: Using mole concept easily determines how much moles of reactant used and how much moles of products…

Q: > How is the quantity of a gas related to those of other substances in a balanced equation?

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A balanced reaction of the combustion of octane created 27 moles of water. How many molecules of…

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Q: any grams of sodium azide are mmHg anc

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Q: The purpose of the mole ratio in mass to mass stoichiometric problems is to _____.   There is no…

A: In a chemical reaction, the reacts in a definite mole ratio, and the products are also formed in the…

Q: What would you multiply "moles of butane (CH10)" by to convert to the units "moles of water" ?

A: The number of moles is given by the mass of the substance upon its molar mass.

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A: 20kg of gas is produced when 1kg of C12H26 is burnt. We need to find the excess air in percentage.…

Q: What would happen to: a) Volume of gas, if number of mole increased? b) Number of moles, if volume…

A: Avogadro rule According to this rule at constant temperature and pressure, the volume of an ideal…

Q: If the amount of gas collected had not been corrected for the presence of water vapor, would you…

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Q: See attachment

A: A chemical equation refers to the symbolic representation of a given chemical reaction in the form…

Q: Compute for the masses of the following chemical equations: 1. 2Mg O2 2MGO 2. 2. 2H90 2Hg O2 1/3./…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Determine the experimental mole of hydrogen gas produced. [ Select ] >

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A: Given data : Mass of sodium nitrate(NaNO3 )= 0.4230g  Mass of sodium nitrite (NaNO2) = 0.2588g…

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A: The definition of the molar volume is to be mentioned.

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A: Given, Mass of carbohydrate sample = 12.915 g Carbohydrate sample composed of CHO On combustion:…

Q: What would be the molecular weight of a gas

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Q: 7. Determine the mass of CO2 produced by completely combusting 40.0 g of acetylene gas. Round your…

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Q: During the analysis, 0.163 g H,0 and 0.600 g CO2 are produced. Calcuate the amount (mol) C in the…

A: The combustion Reaction of the hydrocarbon  Hydrocarbon + O2 → H2O + CO2  By this combustion…

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Q: A 158 g sample of MnCl2-NH2O yields 122 g of the anhydrous compound after heating. Determine n in…

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Q: What is the Molecule weight of sarin gas?

A: Given -> Sarin gas

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A: The pressure of the gas is = 742.1 mmHg The volume of the gas is = 9.65 L The temperature of the gas…

Q: For this equation, (NH4), Cr2 O7 (s) → Cr2 O3 (s) + N2(g) + 4H2O(g), an engineer has to calculate…

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Q: use 17.89 mL (experimental volume) and 0.00074044 mol H2 (theoretical moles of hydrogen gas) to…

A: Given: Volume of gas = 17.89 = 0.01789 L                                    (Since 1 L = 1000 mL)…

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A: Given:  KI produced = 676 g  To calculate:  no. of moles KI produced = ?

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Q: he information below Ws some volumes of

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Q: Suppose that some of the compounds spilled out of the crucible after it was heated. Would that cause…

A: In the crystal lattice structure of many ionic compounds naturally contain water. These compounds…

Q: S STOICHIOMETRY we the following: w many grams of CC ess air? 1. Balanced Equatic 2. Molar Mass 3.…

A: Balanced chemical reaction,  A) 2C8H18 + 25O2 ---> 16CO2 + 18H2O B) molar mass =8×12×18×1=114…

Q: What volume of 0, gas is produced if _Sr(CIO3)2>_SrCI, + _02

A: Strontium chloride (SrCl2) is a salt of strontium and chloride. Like all compounds of Sr, this also…

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Q: c. How many moles of carbon monoxide form at the same time that 0.246 mol CS, forms?

A: In every chemical reaction, reactants undergo reaction forming the products. Mole is defined as the…

Q: Use the following information to determine how many moles were produced? Round to two decimal…

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Q: In 1986 an electrical power plant in Taylorsville, Georgia, burned 8,376,726 tons of coal, a…

A: Given: Percentage of Carbon=83% Percentage of Sulfur=2.5% To find: The number of tons of carbon…

Q: Calculate the volume of dimethyl sulfoxide the student should pour out.

A: Given :- mass of dimethyl sulfoxide = 50.0 g  Density of dimethyl sulfoxide = 1.10 g/cm3 or 1.10…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".