what is the percent by mass of tungsten in the calcium tungstate compound CaWO3, COMMONLY called scheelite?

Q: What is the percent composition of oxygen in AuSO4?

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Q: Chromium(III) nitrate forms a hydrate that is40.50% water by mass. What is its chemical formula?

A: If 100 % mass of Chromium nitrate is present and 40.50 % is the mass of water. Mass of anhydrous…

Q: A compound has the chemical formula CaX2, where X is an unknown nonmetal. The percent by mass of Ca…

A: Percentage by mass of compound means if total compound is 100 g then that component has mass…

Q: The molar mass of oxygen atom (O) is 16g/mol that is the number of Avogadro for * 3mole equal to

A: The question is based on mole concept. we have been given molar mass of the oxygen. we need to…

Q: What is the mass in grams of 49.60 moles of LICI?

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Q: How many molecules C,H, are in 7.62 mol?

A: given  No of moles.   7.62 mol

Q: 2) How many formula units are in 5.00 moles of CaSO,?

A: Solution:       Formula mass involves an addition of the masses of atoms present in the empirical…

Q: The percent by mass of manganese(II) in MnSO3 is %.

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Q: The percent by mass of copper(I) in Cu,CO3 is %.

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Q: Incorrect Is the final answer in percent imultiplied by 100 N Did you and molar mass? Calculate the…

A: Molar mass is sum of atomic weight of all the atom in molecules. We have to calculate percentage of…

Q: How many grams would be 4.87 mol of C,H,,?

A: Given :- number of moles of C5H12 = 4.87  To calculate :- mass of C5H12 (in g)

Q: what is the percent composition of C in C3H8?

A: • Steps to calculate percent composition:- Find the molar mass of all the elements in the compound…

Q: What is the percent mass of iron in the compound Fe3O4

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Q: thetr many years chloroform (CHCI3) was used as an inhalation anesthetic in spite of the fact the t…

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Q: What is the molar mass of cholesterol if 0.00105 mol hasa mass of 0.406 g?

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Q: The percent by mass of nitrogen for a compound is found to be 63.7%. Which of the following could be…

A: Given -> Percent by mass of nitrogen = 63.7%

Q: How many moles of propylene (C3H6) are in 25.0 of the substance?

A: When given mass is devided by its molar  mass then number of mole is obtained.

Q: How many moles of chlorine are in 901 mg of sulfur hexafluoride?

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Q: What is the percent by mass N in Magnesium Nitrate?

A: Atomic mass of N =  14 g mol-1 Molar mass of Magnesium Nitrate (Mg(NO3)2) = 148.3 g mol-1

Q: The percent by mass of iron (III) in Fe₂S3 is %.

A: we have to calculate the mass percentage of Fe(III)

Q: 1. What is the molar mass of ethane, C,H?

A: In this question, we want to determine the molar mass of ethane ( C2H6 ) How we can calculate the…

Q: What would be the number of moles for calcium arbonate if it is  66.0 g T, also the mass.

A: Molar mass of calcium carbonate that is Caco3 is 100g/mol

Q: Calculate the percent composition by mass of each element in xenon tetraflouride and in…

A: Formula of xenon tetra flouride= XeF4   % composition of Xe=(1/5)*100…

Q: molar mass

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Q: what is the molar mass of Iron (lll) nitrate in g/mol?

A: In the given question we have write molar mass of Iron (lll) nitrate in g/mol  there are two types…

Q: The chemical formula for zinc nitrate is: Zn(NO3), Calculate the molar mass of zinc nitrate.

A: The chemical formula given is Zn(NO3)2  Hence 1 molecule of Zn(NO3)2 has  1) 1 Zn atom 2) 2 N atoms…

Q: What is the mass in milligrams of 0.35 moles of cobalt?

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Q: What percent by mass of iron(II) phosphate is iron?

A: The molecular formula of Iron(II)phosphate is Fe3(PO4)2. Percentage by mass of any component can be…

Q: What is the percent by mass of iron (Fe) in FeCO3?

A: Molar Mass of FeCO3 = 115.85 g/mol Weight of 1 Fe atom =55.85 Weight of 1 C atom = 12 Weight of 3 O…

Q: What is the mass percent of oxygen in iron (III) sulfate?

A: What is the mass percent of oxygen in iron (III) sulfate ?

Q: How many moles are in 15000 atoms of iron (Fe)?

A: There are 15000 atoms of iron. One mole of iron contains the number of atoms which is equal to…

Q: How many molecule are in 0.200 mole C13H18O2

A: Given, moles of C13H18O2 = 0.200 mole Number of molecules are in 0.200 mole of C13H18O2 = ?

Q: What is the molar mass of MgS04?

A: Molar mass can be calculated by adding the molar masses of all the species that are present in the…

Q: Tin (Sn) exists in Earth's crust as SnO,. Calculate the percent composition by mass of Sn and O in…

A: Percentage of elements = (molar mass of element/Total molar mass of elements) *100 for eg: in NH3…

Q: What is the molar mass of Pb(NO,),?

A: In the given question we have to calculate the molar mass of given compound. compound - Pb(NO3)2…

Q: 7. The mass percent of water in a hydrate of MnCl, is 36.41%. What is the empirical formula of the…

A: We have to calculate the formula for hydrate..

Q: What is the percent by mass of oxygen in aspirin (C₉H₈O₄)?

A: The molecular weight of aspirin (C9H8O4) is  (12×9+1×8+16×4)=180 gm/mol The oxygen present in…

Q: Question attached

A: The mass of one mole of a substance in grams is called as its molar mass. Since one mole of any…

Q: Percent Composition by Mass: = 3.907 g of carbon combines completely with O.874 g of hydrogen to orm…

A: The question is based on the concept of calculation of mass percent. the mass percent of an element…

Q: The percent by mass of copper(II) in Cu3(PO4)2 is %.

A: Introduction- The mass percent of any element is calculated by the ratio of mass of the element in…

Q: What is the percent composition by mass in C6H12O6?

A: The compound given is C6H12O6. Assuming 1 mole of C6H12O6.

Q: How many H,0 molecules comprise one mole of H,O?

A: The number of molecules in any substance is given by, => Number of molecules = moles X Avogadro's…

Q: How many formula units of sodium chloride are in 1.53 moles?

A: Formula units are the smallest discrete ionic unit which are equivalent to molecules of covalent…

Q: What would be the mass m gras of 0.300 moles of the sonuc compound formed when calcium metal reacts…

A: GivenCalcium metal reacts with oxygeMoles of product formed = 0.3 moleMass of product formed = To be…

Q: What is the percent by mass of nitrogen in NH3?

A: %mass = (mass of solute ÷  mass of solution ) × 100

Q: What is the percent by mass of H in cyclopentane (C5H10)? The molecular weight of carbon is 12.0107…

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Q: The percent by mass of bromine in SiCl2Br2 is

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Q: The percent by mass of silver in Ag,CO3 is %.

A: Molecular mass of Ag2CO3 = 2*atomic mass of Silver + atomic mass of Carbon + 3*atomic mass of Oxygen…

Q: What is the molar mass of Au(PO,), ?

A: Definition of molar mass: The molar mass for any molecule can be calculated by adding the molar mass…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.