Assume 100 g total mass → get mass each → convert each to moles → Calculate molar mass.
Assume 100 g total mass and get mass each
mass HNO3 = 68 g
mass H2O = mass total - mass HNO3
mass H2O = 100 g - 68 g
mass H2O = 32 g
convert each to moles
Molar mass H2O = 18.02 g/mol
Molar mass HNO3 = 63.02 g/mol
What are the mole fractions of HNO3 and water in a concentrated solution of nitric acid (68.0% HNO3 by mass)?
(a) Outline the steps necessary to answer the question.
(b) Answer the question.
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