1) Glucose has the formula C6H12O6. What is the percent composition of oxygen in glucose to three significant digits?   2) A sample of a pure compound contains 68.4% chromium and 31.6% oxygen by mass. What is the empirical formula of this compound? (numbers entered will be considered subscripts)   3) What is the molecular formula of a compound with the empirical formula CH2 if the molecular mass of the compound is 56.10 g/mol?

Q: Cyclohexane C6H12  (given: density= 0.77g/ml) Mass:84.9 g How many moles, molecules and total atoms…

A: I am providing you an image where you can have all the explanations related to this problem please…

Q: The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8 mL…

A: Given; density of water at 4.00Co=0.967 g/mL present volume of water we have=499.8 mL moles of water…

Q: 2C2H6 + 7O2 = 4CO2 + 6H2O If we instead had the combustion of propane, C3H8, how many grams of water…

A: Combustion means burning of the substance in presence of air to produce water and carbon dioxide.…

Q: A friend has some questions about empirical formulas and molecular formulas. You can assume that he…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: The active ingredient in Tum is calcium carbonate. a). What is the chemical formula of calcium…

A: A.Chemical formula of calcium carbonate is CaCO3. B. Molar mass of calcium carbonate is 100g/mol.…

Q: A given sample of a xenon fluoride compound contains molecules of a single type XeFn , where n is…

A: Given that 8 x 1020 molecules of XeFn weigh 0.225 g 6.022 x 1023  molecules of XeFn will weigh=6.022…

Q: a. What is the molar mass of Prevacid? Molar mass = g/mol %3D b. What mass of fluorine is in 0.73…

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Q: What is the mass percentage of carbon in C6H12O3? Express your answer as a percentage (i.e., out of…

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Q: How many grams of CO2 are formed from the combustion of 129 g methane?

A: The above question can be solved by using stoichiometric calculations.

Q: The chemical formula for chlorophyll is C55H72MgN4O5. Given the molar mass of the compound is…

A: molecular mass of chlorophyll  = 893.49 g/mol

Q: Fermentation is a complex chemical process of wine making in which glucose is converted into ethanol…

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Q: Use the molar mass of Ca3(PO3)2 to calculate the moles of oxygen in 6.66 x 106 g of CP.  Give your…

A: given mass of  Ca3(PO3)2 = 6.66 x 106 g    Molar mass of Ca = 40.078 g/mol Molar mass of P = 30.974…

Q: The chemical formula of trinitrotoluene (TNT) is C7H5N3O6. What is the molecular mass of TNT?…

A: We have to find the molecular mass of trinitrotoluene (TNT) is C7H5N3O6. Atomic mass of Carbon =…

Q: In an experiment 0.500 gg of copper reacted with oxygen to give 0.563 gg of copper oxide. What is…

A: Answer 1:       Mass percentage of copper in copper oxide = given mass of coppergiven mass of copper…

Q: Assume that the ratio of moles of Cl to moles of Cu are 1.84.  If we can represent the formula by…

A: The ratio of moles of any two substances in a balanced chemical reaction is called molar ratio.…

Q: Ibuprofen, the anti-inflammatory drug in Advil, has the formula C13H18O2 What is the empirical…

A: Ibuprofen is an anti-inflammatory drug

Q: A sample of glucose, C6H12O6, contains 1.250 x1021 carbonatoms. (a) How many atoms of hydrogen does…

A: a).

Q: A student obtains a mixture of the chlorides of two unknown metals, X and Z. The percent by mass of…

A: Given: Mixture of metal X and Z. And mass percent of X and Z in the mixture.

Q: 4-During the water of crystallization Mass of an empty crucible 40.60 g. experiment, the following…

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Q: 3.01 x 1023 molecules of freon CCl,F,? 1.505 x 1024 molecules of sucrose C12H2201 1.806 x 1024…

A: One mole of any substance contains 6.023 x 1023 Molecules, ions , atoms.

Q: n a chemical reaction between iron and sulfur to produce FexSy3  it was found that 12.92 g of sulfur…

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Q: A combustion analysis is a technique to find the the empirical formula of compounds. In a combustion…

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Q: What is the molecular formula of a compound with the empirical formula CH2 and a formula mass of…

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Q: 1. What do you call to the unit amount of a substance used for measuring large quantities of very…

A: Given:  unit amount of  substance used for measuring large quantities of very small entities such as…

Q: 1. Calculate the mass (g, four significant figures) of CO2 generated from the combustion of 200 g…

A: Combustion Reaction : combustion means heating a substance strongly in excess of oxygen or air in…

Q: Don't get how to fill in the table attached below.

A: The number of water molecules present inside a crystal is known as water of crystallization.The…

Q: Fermentation is a complex chemical process of wine making in which glucose is converted into ethanol…

A:

Q: the formula for disulfiram decafluoride is S2F10   A.How many molecules are in 1.35 grams of…

A: A.

Q: The molecular formula of aspirin is C9H8O4. How many aspirin molecules are present in one…

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Q: Prevacid is used to treat gastroesophageal reflux disease (GERD). The chemical formula of Prevacid…

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Q: What is the mass of 7.10 moles of magnesium chloride, MgCl2? Express your answer with the…

A: 1) The compound given is MgCl2 with moles = 7.10 mol Since molar mass of MgCl2 = Atomic mass of Mg +…

Q: The chemical formula for dimethyl ether is: CH;OCH3 Calculate the molar mass of dimethyl ether.…

A: The chemical formula of dimethyl ether states that one diethyl ether molecule contains two carbon…

Q: Use the molar mass of Ca3(PO3)2 to calculate the number of formula units in 10.0 g of CP.  Give your…

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Q: The formula of glucose is C6 H12 O6. a. The number of molecules in 166 grams of glucose would be…

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Q: The molecular formula of allicin, the compound responsiblefor the characteristic smell of garlic, is…

A: Molar mass of a compound is the sum total of molar masses of the elements present in that particular…

Q: What is the mass in grams of 6.56 x 1022 molecules of lactic acid (C3H6O3), the compound responsible…

A: 1- First we need to calculate the moles of lactic acid :  Moles of lactic acid = [ number of…

Q: Aqueous solutions of (NH4)3 PO4 and CaCl2 are mixed together and produce Ca3(PO4)2 and NH4Cl. When…

A: The reactants given are 1) (NH4)3PO4  2) CaCl2  And the products forming are 1) Ca3(PO4)2  2) NH4Cl…

Q: How many chloride atoms are in 32.3 g of CaCl2?

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: Part A. What is the mass of 9.50 moles of magnesium chloride, MgCl2? Express your answer with…

A: Part A: Calculation of mass of MgCl2 : The number of moles of MgCl2 = 9.50 moles The mass of a…

Q: A 3.06 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: In the complete combustion of tetradecane, C14H30, how many moles of water are produced?

A: A combustion reaction is a reaction in which a compound reacts with oxygen gas to produce carbon…

Q: The molecular formula of hexakis(methylthio)benzene is C12H18S6. What is the percentage (by mass) of…

A: We have to calculate the % by mass of C in hexakis(methylthio)benzene .

Q: A combustion analysis is a technique to find the the empirical formula of compounds. In a combustion…

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Q: A 6.40 g sample of a compound is burned to produce 8.37 g CO, 2.75 g HO, 1.06 g N, and 1.23 g SO.…

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Q: A molecular formula expresses the number of each kind of atom in a molecule. For example, the…

A: Given: Mass of compound = 6.50 g Mass of CO2 = 9.53 g. Mass of H2O = 3.90 g. Molar mass of CO2 = 44…

Q: The empirical formula of a compound containing carbon, hydrogen and bromine is C₂H₄Br. The molar…

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Q: The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of…

A: Solution:Butane = C4H101 mole of butane has 4 carbon atoms and 10 hydrogen atoms1 mole of any…

Q: 01.)What is the molecular formula of a compound with the empirical formula As2O5and a formula mass…

A: Given values are,  Empirical formula= As2O5 And formula mass = molar mass= 459.678 amu Now from…

Q: 2.845 x 10E12 potassium ions equals how many moles of potassium ions?

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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.