At the Shanghai World Expo, 100 fuel cell sightseeing vehicles were in the Expo site. They drank hydrogen and produced water, realizing zero emission It is necessary to add 30% KOH solution into the fuel cell. Now there are 10kg 10% KOH solution, 14kg KOH solid and proper amount of distilled water. How many kg of 30% KOH solution can be prepared?
10 kg 10% KOH solution contains solute, and the mass of KOH is 0
10*10%kg=1kg
Now the average mass of KOH is 14 = 1 = 15kg
There is enough distilled water
It is assumed that 30% KOH solution can be prepared
Then x * 30% = 15
X = 50
That is, 30% KOH solution of 50 kg can be prepared