Question

You need a 40% alcohol solution. On hand, you have a 520 mL of a 25% alcohol mixture. You also have 80% alcohol mixture. How much of the 80% mixture will you need to add to obtain the desired solution?

Answer 1

how much alcohol is in the 520 ,:?

Answer 2

25%?

Answer 3

yeah, that is what it says. 25 percent. but the question i was asking was how many mL of alcohol are in the 520mL solution?

Answer 4

130?