Explanation Mole of any elements is defined as “The amount of the element whose, mass in grams is equal to the atomic mass which is expressed in atomic mass units ( u ). This definition means that mole of any elements will contain the same number of atoms as mole of other element. This constant value is known as Avogadro’s number . Avogadro’s number ( N 0 ) is the number of atoms that is present in per mole of any element or number of formula units present in per mole of any substance. This is equal to 6.02 × 10 23 atoms/mol . The total number of hydrogen molecules and oxygen molecules in one mole will be equal to the Avogadro’s number. The product of total number of moles and the atomic mass of the substance gives the total mass of the substance. Mass of magnesium is 24 .31 g/mol . Therefore, Mass of 1 .6 mol of Magnesium = (1 .6 mol)(24 .31 g/mol) = 38 .9 g The mass of 1 .6 mol of Magnesium is 38

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ISBN: 9781259665004

Author: Konrad B Krauskopf, Arthur Beiser

Publisher: McGraw-Hill Education

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Chapter 12, Problem 12E

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The mass of 1.6 mol of magnesium and the total number of atoms present in the sample has to be calculated.

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Chapter 12, Problem 11E

Chapter 12, Problem 13E

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Chapter 12 Solutions

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The mass of 1 .6 mol of magnesium and the total number of atoms present in the sample has to be calculated.

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The mass of 1.6 mol of magnesium and the total number of atoms present in the sample has to be calculated.

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Chapter 12 Solutions