Question

How many liters of water must be added to 8 liters of a 40% acid solution to obtain a 10% acid solution? Please Show All Work!
Vipster

8 litres of 40% acid

3.2 litres acid and 4.8 litres of water

lets say you add x litres

3.2 / (8+ x) = 10%

3.2 = 0.8 + 0.1x

x = 24 litres of water needs to be added