Concept explainers
Interpretation: The term molar mass needs to be defined.
Concept Introduction: The molar mass of a substance is an important concept in chemistry and is used in almost all stoichiometric calculations.
Answer to Problem 2E
The molar mass of a substance is defined as the mass of one mole of the substance. As per Avogadro, a mole of a substance is defined the weight of the substance which contains
Thus, the unit of molar mass is g.mol-1.
Explanation of Solution
The molar mass of a substance is the sum total of the
C:
O:
Since carbon occurs once and oxygen occurs twice in the chemical formula of carbon dioxide, hence, the molar mass of
Thus, the molar mass of
The molar mass of a substance is the mass of one mole of the substance and is numerically equal to the molecular weight of the substance expressed in the unit of g.mol-1.
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