Discover the answers to your questions at Westonci.ca, where experts share their knowledge and insights with you. Connect with professionals ready to provide precise answers to your questions on our comprehensive Q&A platform. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

A chemist has one solution that is 80% acid and another solution that is 30% acid. How much of the first (80%) solution is needed to make a 400 L solution that is 62% acid?

Sagot :

Pulkit
Let x be the quantity of solution one in mixture.
so solution 2 would be (400-x) L

according to ques.
80% of x + 30% of (400-x) = 62% of 400
i.e. 80*x/100 + 30*(400-x)/100= 62*400/100
=> 80x - 30x = 62*400 - 30*400
=> 50x = 32*400
x=256 L
therefore 256L of solution one is required