Question

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

Answer 1

The answer is 0.78 mol/dm³

Step-by-step explanation:

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

`c = (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 = (7)/(9) \\ = 0.77777777...`

We have the final answer as

0.78 mol/dm³

Hope this helps you