# Problem: An aqueous solution that is 42.0% of C 2H6 by mass has a density of 1.78 g/mL. What is the molarity of this solution? a. 24.9 M b. 0.0249 M c. 1.40 M d. 43.0 M e. 0.052 M

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An aqueous solution that is 42.0% of C 2H6 by mass has a density of 1.78 g/mL. What is the molarity of this solution?

a. 24.9 M

b. 0.0249 M

c. 1.40 M

d. 43.0 M

e. 0.052 M

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