A chemist needs a 50% of sulfuric acid. She mix 2 liters of 20% of sulfuric acid with a sample of 60% of sulfuric acid. Write a equatoin that models the situation and use it to find how much the 50% of the sulfuric acid she needs to use?

Question

A chemist needs a 50% of sulfuric acid. She mix 2 liters of 20% of sulfuric acid with a sample of 60% of sulfuric acid. Write  a equatoin that models the situation and use it to find how much the 50% of the sulfuric acid she needs to use?

bobpursley · Answer

Ok, she has figured out how to make 50 percent solution, and the above Ok, how much 60Percent she needs? 2liters*.2 + V*.6=(V+2).5 solve for V .4+.6V=.5V+1 .1V=.6 V=6 liters check my math.