Question

a lab tech needs to make a 72-liter batch of a 20% acid solution. How can the tech combine a batch of an acid that is pure with another that is 10% to get the desired concentration?

Answer 1

hmm. it's confusing. can you stay a moment

Answer 2

@tinaboutin are you there?

Answer 3

hello, I am still here.

Answer 4

100x + 10y = 20
x + y =72

Answer 5

yes. answers are 14.4liter from pure and 57.6 from 10% acid

Answer 6

Thank you so very much Lochana. I have been stumped on this one for a while now..Tina

Answer 7

@tinaboutin bye