80)0 grams of NaOH is dissolved in 3.0 moles of H?0. What is the mole fraction of NaOH in this solution?
A))20
B))37
C))40
D))64
E))79

Name: 80)0 grams of NaOH is dissolved in 3.0 moles of H?0. What is the mole fraction of NaOH in this solution?
Brand: Quizplus
Rating: 4.8 (44 reviews)

Question

80)0 grams of NaOH is dissolved in 3.0 moles of H?0. What is the mole fraction of NaOH in this solution?

Quizplus · Accepted Answer

The mole fraction for a compound indicates (moles of given compund) / (total moles of system). In this question, there are two moles of NaOH and five total moles in the system. Thus, the mole fraction is expressed as 2/5, or .40.

80)0 Grams of NaOH Is Dissolved in 3