Question

find the amount of solute
if a
solution contain
30% by mass however
amount
of solvent in750 gram
​

Answer 1

Answer:

       x = 321.4 g

Explanation:

mass % of solute = 30%

let mass of solute = x

mass of solution = x + 750

30 / 100 × (x + 750) = x

3/10 × (x + 750) = x

3x + 2250 / 10 = x

3x + 2250 = x × 10

3x + 2250 = 10x

10x - 3x = 2250

7x = 2250

x = 2250 / 7

x = 321.4 g