1. What is the molecular formula for the compound that has a molar mass of 180.2 g/mol and the following percent compositions? What is the empirical formula for the compound C - 40.0%      H - 6.7%      O - 53.3%

Q: A compound has an empirical formula of C3H¬NO and a molar mass of 146.22 g. What is its molecular…

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Q: Determine the empirical formula and name for a compound that contains 88.0 % Cobalt and 12.0% oxygen…

A: We have 88% as cobalt, 12% as oxygen . We have to predict the empirical formula of the compound.

Q: Match equal numbers of moles 0.00567 mole He 1. 22.7 mg He 0.00293 mole He 2. 58.9 mL He 3. 25.0 mL…

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Q: Calculate how many moles of CaCl2•2H2O are present in 1.50 g of CaCl2•2H2O and then calculate how…

A: Initial mass of calcium chloride di-hydrate = 1.50 g Molar mass of calcium chloride di-hydrate =…

Q: A compound contains, by mass, 81.7% carbon and 18.3% hydrogen. A 0.15 mole sample of this compound…

A: Given  % Carbon  = 81.7 %  % H   =  18.3 %  Number of mole     = 0.15 mole  Mass of compound = 6.6…

Q: Determine the molecular formula of a compound that contains 26.7%P, 12.1% N, and 61.2% Cl, and has a…

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Q: Consider

A: We will use stoichiometry of the reaction to get the answer

Q: What is the correct numerical value for the molar mass, in grams, of CO2 A. 12.0 B. 24.0 C. 44.0 D.…

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Q: 11. The combustion of glucose is represented by the following balanced equation: C6 H1206+6 02 6…

A: Limiting reagent:  The reagent that consumed completely during course of reaction is known as…

Q: Determine the empirical formula of a compound containing 60.3% magnesium and 39.7% oxygen. Mgo O…

A: Answer :   A) MgO Consider ,  100 g of the sample containing Mg and O  % of Mg =60.3 g and % of O =…

Q: How many mols of sncl4 can be produced from .90 mol of fecl3

A: The question is based on the redox reaction of FeCl3 and SnCl2. Here FeCl3 acts as the oxidizing…

Q: A compound has the following percent compositions. Find the empirical formula of this compound.…

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Q: Using the balanced chemical equation, determine how many moles of NaCl will be produced, if 0.907…

A: A question based on mole concept. A reaction involving formation of NaCl is given using that the…

Q: Determine the empirical formulas for the compounds with the following percentage compositions. 31.…

A: Given composition is, %Carbon= 80.04 %Hydrogen = 19.96

Q: The molar mass is 876.16 g/mol.    If you have 5.0 mL of this oil, how many moles does it contain?…

A: Given --> Density = 0.79 g/mL  Molar mass = 876.16 g/mol  Volume = 5 ml  Density = Mass / Volume…

Q: C3H8 + O2 > CO2+ H2O C3H8 O2 CO2 H2O mol 5 mol mol 4 mol 3.33 mol mol 9 mol 13.32 mol mol 26.25 mol…

A: C3H8  +  5O2    →   3CO2   +  4H2O  C3H8 O2 CO2 H2O 1 mol 5 mol 3 mol 4 mol 3.33 mol 16.65…

Q: What is the percent composition of the antibiotic tetracycline, which has the molecular formula of…

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Q: Based on the following chemical equation: 4 HCN + 5 02 ---> 2 N2 +4 CO2 + 2 H20. How many grams of…

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Q: How many moles are present in 105.6 g of H2SO4? 105.6 mol 98.08 mol 0.9288 mole O 1.077 mole

A: Calculate number of moles of H2SO4 in 105.6 g ?

Q: Flask A contains 1.00L of NH3 Flask 2 contains 1.00L of NO2 and flask 3 contains 1.00L of N2 which…

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Q: Consider the following unbalanced reaction. P4(s) + F2(g)  PF3(g) What mass of F2 is needed to…

A: The balanced equation can be written as, P4(s)+6F2(g)→4PF3(g) The given data contains, mass = 209 g.…

Q: Which of the following shows how to convert 35 grams of N2 into grams of NH3 using the equation…

A: We have to predict the correct expression for calculating mass of ammonia.

Q: Acetone is a well-known industrial solvent with a molecular formula of: C3H60. Calculate for its…

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Q: Give the percent yield when 28.16 g of CO₂ are formed from the reaction of 3.000 moles of CgH18 with…

A: Given:Moles of C8H18 = 3.00 molMoles of O2 = 6.00 molMass of CO2 = 28.16 gand reaction, 2C8H18 +…

Q: moles

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Q: how many moles of Al2O3 are produced by complete reaction of 13.35 of Al according to this equation?…

A: Answer = 0.2474 moles

Q: 25.0g of Co2 contain how many oxygen atoms (Molar mass of CO2 = 44.01 g.mol-1) A 1.00x1024 B…

A: Given-> Weight of CO2 = 25.0 gm Molar mass of CO2= 44.01 g/mole

Q: 4a Calculate the empirical formula of a compound given the following percent composition. c=-44.5%;…

A: Given data, C = 44.5% H = 3.70% N = 51.8%

Q: Calculate how many moles are in 17.0 grams of H2O2? O 50.00 mol 0.500 mol 5.000 mol 0.599 mol O None…

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Q: How many moles of Fe2O3 are produced when 0.275 moles of Fe is reacted?  0.137 mole Fe2O3 0.138 mole…

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Q: Convert 7.63g of NH3 to moles.  Group of answer choices 0.448 moles 0.178 moles 1.56 moles 2.50…

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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.