The mass fraction of an element present in a compound can be obtained by comparing the mass of the particular element present in 1 mole of the compound to the ____ mass of the compound

Q: The mass of 5.15 moles of a compound is determined to be 298 g. What is the formula mass of the…

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Q: How is the mass percent of elements in a compund different for a 1.0-g sample versus a 100.-g sample…

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Q: True or False The mole ratio is the ratio of the chemical amounts of reactants and products in a…

A: Molar ratio are used as an conversion factor between two species involved in a chemical reaction in…

Q: A compound consisting of B, N, and H undergoes elemental analysis. The % composition by mass is…

A: Given,Percent of B in the compound = 40.28 %Percent of N in the compound = 52.20 %Percent of H in…

Q: A block of pure magnesium metal weighs 76.9 grams. How many moles of magnesium are present in the…

A: Mole= mass of Mg / molar mass of Mg Given - 1) mass of Mg =76.9              2) Molar mass of Mg=…

Q: Determine the molar mass of the hydrate CaCl2⋅2H2O.CaCl2⋅2H2O. molar mass:   g/mol

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Q: You will see similar questions like: A mineral sample is obtained from a region of the country that…

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Q: 1.    How many grams are in 2.3 x 1022  molecules of Ca3?  Ca= 40.08   Molar Mass:       = _________

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Q: Complete the table below for calculating the molar mass of the compound carbon tetrachloride. Molar…

A: The complete table for the molar mass of the compound carbon tetrachloride is given below, 1mole of…

Q: Determine the empirical formula of a compound with mass composition of 67.56% Carbon, 9.94%…

A: Empirical formula is the simplest whole number ratio of the atoms present in the given molecular…

Q: Define 1. Stoichiometry 2 Formula mass

A: Define  1. Stoichiometry  2 Formula mass

Q: What amount in moles is 4.77x10^25 (to the power of 25) molecules?? 1.2.87x10^49 mol 2.79.2 mol…

A: Molecules = 4.77 x 1025

Q: A compound has the following percentage composition by mass: copper; 33.88%; nitrogen, 14.94%;…

A: Given,Mass percentage of copper = 33.88%.Mass percentage of nitrogen = 14.94%.Mass percentage of…

Q: Complete the table below for calculating the molar mass of the compound sulfur trioxide. S O Molar…

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Q: % composition by mass of each compound

A: The reaction considered is, 3I2 + 6 KOH→5KI + KIO3+ 3 H2O The % composition by mass of each compound…

Q: What is the mass of 8.00 molesmoles of magnesium chloride, MgCl2MgCl2? Express your answer with the…

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Q: An alloy is found to be 41.8% Zn and the rest is Cu. If 15.0 g of Cu is added to 45.0 g of This…

A: Mass of the alloy = 45g% of copper in the alloy = (100-41.8) = 58.2%% of zinc in the alloy =…

Q: explain why the number of atoms and moles are different when the volumes are nearly identical?

A: 1. The table contains the data required to solve this problem.

Q: The coefficients in a balanced chemical reaction are commonly used in stoichiometry to: provide mass…

A: Answer

Q: Which option correctly describes the reactants and products of a chemical reaction? The mass of…

A: In this question, we have to describes the correct statement about reactants and products of a…

Q: What is the amount of H present in the original sample, in moles?

A: We have moles of H2O in the compound = 0.00610   (= Given mass of water (0.110 g) divided by the…

Q: Mass of  reactant A  Mass of  reactant B  Mass of  pure product   Mass of  excess reactants…

A: From the first trial ., 4.1796 gram mass of reactant A react with 1.0296 gram mass of reactant B to…

Q: 6. Calculate the stoichiometric formula of a compound, which is defined by the mass composition: C:…

A: The question is based on elemental chemistry. We need to calculate empirical formula of the given…

Q: 0.117 mol of a particular substance weighs 21.9 g. What is the molar mass of this substance?

A: Number of moles = Mass/Molar mass

Q: What is the difference between molar mass and empirical formula mass of a compound? When are these…

A: Molar Mass is defined as the mass of substance for a given amount. The amount of molecules or atoms…

Q: One molecule of an unknown compound is found to have a mass of  4.61 x 10-22 g. What is the molar…

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Q: 7) Define stoichiometry. A) the concept that 6.02 x 1023 atoms are in 1 mole of an element B) the…

A: A) the concept that 6.02 X 1023 atoms are in 1 mole of an element is known as Avogadro's concept…

Q: A cable making company produces a metal wire, with a diameter of 1.00 mm. What will be the length of…

A: Volume of a cylinder (wire) is given by: V=πr2h…

Q: How to Calculate an Empirical Formula from Percentage? Given: Find: Assume Mass % Use Grams of each…

A: Since we only one answer at a time, we’ll answer the first one. Please resubmit the question and…

Q: . Use the molar masses of the elements in the product to calculate the number of moles of…

A: Each chemical reaction occurs according to the stoichiometry of the reaction. Elements combine in a…

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.