Question

What is the molarity of a solution that contains 7.0 moles of solute in 9.0 liters of solution?

Answer 1

Answer:

The answer is 0.78 mol/dm³

Explanation:

In order to calculate the molarity of the solution we use the formula

$c = \frac{n}{v}$

where

c is the molarity

n is the number of moles

v is the volume in dm³

From the question

n = 7 mol

v = 9 L = 9 dm³

We have

$c = \frac{7}{9} \\ = 0.77777777...$

We have the final answer as

0.78 mol/dm³

Hope this helps you