Question

Q: What is the molarity of a solution containing 7.9 g of naoh in 300 ml solution?

please help me solve this question ​

Answer 1

We know

Molarity= moles of solute/ volume of solution ( in litres)

So moles of 7.9 g NaOH will be

7.9/40 = 0.19 moles

Now

M = 0.19/0.3

Which is approximately 0.63 M

I hope it's clear now.

Incase you have any doubt feel free to ask.