Question

How much acid should be added to 400 ml of 15%
acid solution to increase its strength to 32%?​

Answer 1

Answer:

453.33ml

Step-by-step explanation:

reffer the attachment

hope it helps you

Answer 2

let x ml of acid be added to this solutisol.The total volume is (400+x) of which 32%is acid .The amount of acid in this solution is x+60

Step-by-step explanation:

.32(400+x)=x+60

128+.32x=x+60

0.68x=68

x=100ml of acid