Question

What is the density of a solution composed of `189*mL` of water, and `54*g` of salt?

Answer 1

Well, clearly, the masses are additive.....

Explanation:

And given that water has `rho_"density"=1.0*g*mL^-1`, we have a mass of (i) `189*mLxx1.0*g*mL^-1=189*g` with respect to water, and `54*g` with respect to salt, we gots....

`(54+189)*g=243*g` in total.

Given that the volume of the liquid would change marginally upon dissolution of the salt, can you tell us the density of the solution?

Remember, `rho_"density"="Mass of solution"/"Volume of solution"`, the which would give us an answer in `g*mL^-1`.