SOLUTION: A chemist, has one 30 litre bottle of 15% hydrochloric acid and one 30 litre bottle of
90% hydrochloric acid. He mixes 20 litres of 60% hydrochloric acid and then pours 5 L of tha
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> SOLUTION: A chemist, has one 30 litre bottle of 15% hydrochloric acid and one 30 litre bottle of
90% hydrochloric acid. He mixes 20 litres of 60% hydrochloric acid and then pours 5 L of tha
Log On
Question 718157: A chemist, has one 30 litre bottle of 15% hydrochloric acid and one 30 litre bottle of
90% hydrochloric acid. He mixes 20 litres of 60% hydrochloric acid and then pours 5 L of that
solution into the bottle containing the 90% hydrochloric acid. How strong is the acid in that bottle
now?
5+30=35
0.6(5)+0.9(30)=30
30/35= ~85.71%
But that answer is incorrect according to the textbook which said 83.5%... Found 2 solutions by lynnlo, stanbon:Answer by lynnlo(4176) (Show Source):
You can put this solution on YOUR website! A chemist, has one 30 litre bottle of 15% hydrochloric acid and one 30 litre bottle of 90% hydrochloric acid.
--------------------------------------
He mixes 20 litres of 60% hydrochloric acid and then pours 5 L of that solution into the bottle containing the 90% hydrochloric acid. How strong is the acid in that bottle now?
---
Equation:
acid + acid = acid
0.60*5 + 0.90*30 = x(35)
------
3 + 27 = x(35)
x = 30/35
x = 86%
================
Cheers,
Stan H.
===============
(