The document discusses the concepts of molarity and molality, and how to compute molar mass, with specific examples and activities. It provides definitions and formulas for molarity and molality, a detailed example of molar mass calculation, and exercises to practice calculating molar mass for diff...
MOLARITY MOLALITY
HOW TO COMPUTE MOLAR MASS
WATER (H2O)
H=2 (mol)
H=1 g/mol (A.mass)
O=1 (mol)
O= 16g/mol (A.mass)
H=2x1 = 2g
O=1x16 = 16 g
Molar mass= 18g/mol
Molarity (M) is a concentration unit that describes how much of a
substance is dissolved in solution.
Molarity: moles of solute/ Liters of solution
M = molsolute/Lsoln
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