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3) Fill in the blanks about the mole and Avogadro's constant. The standard unit of the amount of substance in chemistry is the __ __ is the symbol of shortened form of mole (singular) or moles (plura). The mass of 1 mole of a substance is called __ . It is taken as relative atomic mass (A_(r)) or relative molecular mass (M_(r)) of the substance in grams. For example, formula of ethanoic acid is CH_(3)COOH and its relative molecular mass is __ . Molar mass of CH_(3)COOH is __ with the unit of __
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The standard unit of the amount of substance in chemistry is the mole. The symbol or shortened form of mole (singular) or moles (plural) is 'ol'. The mass of 1 mole of a substance is called the molar mass. It is taken as the relative atomic mass (Ar) or relative molecular mass (Mr) of the substance in grams. For example, the formula of ethanoic acid is CH3COOH and its relative molecular mass is 60. Molar mass of CH3COOH is 60 g/mol with the unit of g/mol.
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