Answer:
The answer is 0.78 mol/dm³
Explanation:
In order to calculate the molarity of the solution we use the formula
[tex]c = \frac{n}{v} \\ [/tex]
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
[tex]c = \frac{7}{9} \\ = 0.77777777...[/tex]
We have the final answer as
0.78 mol/dm³
Hope this helps you
