# Doubt from solutions

**sonu_2020**#1

I would like to know what proof do you exactly need.

A few of them are direct formula. It is as it should be.

If you are talking about theoritical significance of the formulas I would be happy to give it.

1 Like

**Lavesh_2020**#6

I'd be able to post image till Wednesday. Is that okay? I have the proofs in my notes.

**sonu_2020**#8

m-molality

M-molarity

Mw-molecular weight

(w/v)%=weight by volume percent

d-density

X-mole fraction

@Tanmay_1

**Tanmay_1**#16

I am big 0 in chemistry however i searched and posted ...better you refer books of higher study in chemistry...