Calculate the mass percentage of Copper (II) sulfide. Make sure to include the chemical formula.

Q: Calculate the mass percent of H in B4H9CI. %

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Q: To three significant digits, what is the mass percentage of iron in the compound Fe2O3?

A: Molar mass of Fe = 55.85g/mol Molar mass of O = 16g/mol Molar mass of Fe₂O₃ = 2(55.85) + 3(16) =…

Q: If you were asked to determine the formula mass of aluminum sulfate, how many oxygen atoms would you…

A: Formula mass is the sum of the mass of all the elements in the empirical formula of the compound.

Q: Determine the mass percentage of hydrogen in CH4  and ‍C2H6.

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Q: A compound was found to have the following composition by mass: 28.03% Mg, 21.60% Si, 1.16% H, and…

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Q: 0.172 g of Mn was heated in the presence of oxygen to make 0.272 g of MnxOy.  Based on this data,…

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Q: Calculate the percentage composition for CC1 . Mass percentage of carbon = %3D Mass percentage of…

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Q: Calculate the number of oxygen atoms in a 80.0 g sample of forsterite (Mg, SiO,).

A: number of moles = mass/molar mass  1 mol contain atoms equal to 6.022 × 1023

Q: A sample of an iron alloy contains 89.4 g Fe, 2.50 g C, and 1.47 g Cr. Calculate the percent by mass…

A: Given :-  Mass of Fe = 89.4 g  Mass of C = 2.50 g  Mass of Cr = 1.47 g  To calculate :-  Percent by…

Q: Percentage Composition: Aluminum Phosphate

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Q: Calculate the mass percent composition of lithium in Li3PO4.

A: Given :-  Chemical formula of lithium phosphate = Li3PO4  To calculate :-  Mass percent composition…

Q: What is the mass, in grams, of a mole of ozone (0,) molecules?

A: Given :- 1 mol O3 molecules  To calculate :- mass of 1 mol O3 molecules in gram.  1 mol O3 molecules…

Q: Calculate the theoretical mass percent of barium in BaCl2∙2H2O.

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Q: Determine the percentage composition (by mass) of fluoride in tin(II) fluoride.

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Q: Determine the percent composition (by mass) of oxygen in H2SO4

A: Lets assume we are having 1 mole H2SO4: So one mole of H2SO4 is having 4 moles of oxygen atoms.…

Q: A compound has a molar mass belween 165 - 170g. the percentage composition by mass values are…

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Q: Calculate the mass percentage of each element in 2-propanol, represented by the following molecular…

A: C3H8O is 2-prpanol Molar mass =60 Mas of element in compound= mass of elements×100÷total mass of…

Q: 1. 84 g of CsH&O6 contains 6.02 x 1023 molecules.

A: Molar mass of C5H8O6 = 5×12 + 8×1+ 6 × 16 = 164 g 1 mol of any substance contains= 6.022×1023…

Q: How many vanadium atoms are contained in 158 kg of vanadium?

A: 1 mole of substance contains 6.022 x 1023 atom.

Q: Calculate the percentage composition for PCI3. Mass percentage of phosphorus = Mass percentage of…

A: Formula : PCl5 Molar mass of P = 31 g/mol Molar mass of Cl = 35.5g/mol  Molar mass of PCl5 = P +…

Q: Write the empirical formula of an ionic compound?

A: ANSWERE IS DISCUSSED BELOW :

Q: Calculate the mass of tetraborane that contains a billion (1.0x10^9) boron atoms.

A: Given :- number of boron atoms = 1.0 × 109 atoms  To be calculated :- mass of tetraborane (in grams)

Q: Describe the process of Interconverting Masses and Moles?

A: Moles of a substance = given mass of substancemolar mass of substance  Mass of a substance = moles…

Q: gold (I) bicarbonate manganese (IV) hypochlorite lithium sulfide aluminum iodate bismuth (III)…

A: When two or more atoms combine with each other, they will form molecule and those molecules has…

Q: How to convert from mass percent to mass of an element ?

A: We can calculate mass of element if we have have information about mass percent and total mass.

Q: Calculate the mass percentage of each element in vanadium (III) acetate.

A: Given :- name of compound = vanadium (III) acetate  To calculate :- mass percentage of each element

Q: How many oxygen atoms are in 1.70 g of quartz?

A: The chemical formula of quartz is SiO2. The formula mass of SiO2 is 60.08 g. The number of moles (n)…

Q: calculate the mass percentage of each element in 2-propanol

A: The question is based on the mass percentage. we have been given 2-propanol molecule. We have to…

Q: Calculate the mass percent composition of carbon in carbon containing compound. C2H2

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Q: Write the balanced chemical equation for the reaction between Magnesium and oxygen. Explain the…

A: Reaction between Magnesium and oxygen gives Magnesium Oxide Balanced Chemical equation For reaction…

Q: Determine the atomic and mass ratio of NaCl and calculate how many grams of Na is needed to make a…

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Q: Calculate the mass percent composition of carbon in carbon containing compound. C2H6

A: The compound given is C2H6  We find the molar mass of the compound:  = 2*12 + 6*1= 24 + 6 = 30 g/mol…

Q: Calculate the mass percent of H2O2

A: To solve this problem first we calculate the mass of Hydrogen peroxide .then mass Percent is…

Q: What mass of oxygen would be in a 124.56g sample of sodium thiosulfate Na2S2O3?

A: Given that:  Mass of Na2S2O3 = 124.56g  Molar mass of Na = 23g/mol Molar mass of S = 32g/mol Molar…

Q: Calculate the percentage of potassium, by mass,in K2PtCl6.

A: Mass percent of the solution is defined as the mass of solute divided by the mass of solution…

Q: Calculate the mass percent of 0 in ClO,F.

A: Given compound is ClO3F  Molar mass of Cl = 35.5 g/mol  Molar mass of O = 16 g/mol  Molar mass of F…

Q: Determine the percent composition by mass of all elements in Mn,O5.

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Q: Calculate the mass (in g) of each sample.a. 4.5 * 1025 O3 moleculesb. 9.85 * 1019 CCl2F2 moleculesc.…

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Q: What is the correct formula of a hydrate that contains 24.5% H2O and 75.5% CaCl2, by mass percent?

A: since we know that general formula of hydrate of CaCl2  is CaCl2•xH2O where x is the number of mole…

Q: What is the empirical formula for C6H2O6

A: Empirical Formula = C3H1O3

Q: Calculate the mass percent composition of carbon in carbon containing compound. C2H5Cl

A: Mass percent :  It is the percentage of mass of a particular element present in the total mass of…

Q: Determine the quantity of atoms of vanadium in 1.28 grams of vanadium

A: Given :- mass of Vanadium = 1.28 g  To calculate :- number of atoms of Vanadium

Q: 0.172 g of Mn was heated in the presence of oxygen to make 0.272 g of MnxOy.  Based on this data,…

A:

Q: Calculate the mass percent of each element in ZnCI2 ?

A: Mass percent of element =Mass of element in the compoundMolecular mass of compound​X100 Atomic mas…

Q: Explain Composition of Compounds?

A: Atomic theory explains the constant composition of chemical compounds. It is also known as Law of…

Q: Rank the following compounds in order of increasing mass percentage of nitrogen: NO, NO₂, N₂O.

A: NO :Formula to find the % of N :% of N = (mass of N / molar mass of the compound ) X 100…

Q: Portland cement contains some Fe2O3. Calculate the mass percent composition of iron in this…

A: Weight percent: The mass of one component divided by the total mass of the mixture, multiplied by…

Q: Chromium metal is obtained by heating chromium(111) oxide with carbon.Calculate the mass percentage…

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of…

Q: What is the mass percentage of chlorine in iron (III) chloride (FeCl3)?

A: Mass percentage of chlorine = (mass of Cl in FeCl3 / Molar mass of FeCl3) x 100

Q: Calculate the number of SS atoms in 0.700 molemole of SS.

A: Given information:It is assumed that S represents Sulfur. Mole of S is 0.700 mol.

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".