Question

a chemist has 10 ml of a 30% acid solution. How many milliters of pure acid must be added in order to obtain a 50% acid solution

Answer 1

(10*0.3) + x = 0.5(10+x)
Solve for x.

Answer 2

why the +x on the left side though

Answer 3

Should be 1*x or just x because you're adding some volume x with a concentration of 1 to the initial 10mL with a 0.3 concentration.

Answer 4

Oh okay thank you!!

Answer 5

You're welcome.

Answer 6

Next time, post the question in the Chemistry section.

Answer 7

but this is algebra homework lol

Answer 8

the question was just a chemistry topic

Answer 9

Okay.