Problem: 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.
FREE Expert Solution
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
Problem Details
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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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Mole Fraction concept. You can view video lessons to learn Mole Fraction. Or if you need more Mole Fraction practice, you can also practice Mole Fraction practice problems.
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Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.