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 number of moles can be calculated using the formula given below, Number of Moles of substance = Mass of the substance Molar mass of the substance Mass of hydrogen atom = 1 g Molar mass of hydrogen = 1 g/mol Total number of hydrogen atom in water = 2

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ISBN: 9781259665004

Author: Konrad B Krauskopf, Arthur Beiser

Publisher: McGraw-Hill Education

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Chapter 12, Problem 28MC

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Solution Summary: The author explains that mole of any element is defined as the amount of the element whose, mass in grams is equal to the atomic mass. Avogadro's number is the number of atoms

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