Question

A 1.25 L solution of strontium hydroxide had a pOH of 0.255. Calculate the mass of strontium hydroxide (Sr(OH)₂) required to make this solution.

Answer 1

V= 125L

pOH=0.255

$1L= 1000m³$

125L= 125000m³

If 1m³= 1000kg then;

125000m³= 1.25× 10⁸kg