Question

answer this question​

Answer 1

Answer:

11.11%

Explanation:

MASS OF SOLUTION= 640+80= 720g

MASS% = MASS OF SOLUTE\MASS OF SOLUTION*100

= 80\720% = 11.11%

Answer 2

Answer:

11.1 percent

i hope this helps you friend!

Explanation:

the mass percentage of solution will be given by

(mass of the solute/mass of the solution)*100

=[80/(640+80)] *100=100/9=11.1 percent