Posted by Liz on Sunday, October 9, 2011 at 9:29pm.
How many liters of 80% hydrochloric acid must be mixed with 40% hydrochloric acid to get 15 liters of 65% hydrochloric acid? Write your answer rounded to three decimals. Show all work.

College Algebra  Steve, Monday, October 10, 2011 at 10:44am
Work with the total volume of HCl
The amount of HCl in a liters of 80% acid is just .8a
In b liters of 40% acid is .4b
Total acid: .65*15
Total volume: a+b
.8a + .4b = 9.75
a + b = 15
.8a + .4b = 9.75
.8a +.8b = 12
.4b = 2.25
b = 5.625 liters of 40% acid
a = 9.375 liters of 80% acid

College Algebra  lo, Wednesday, October 9, 2013 at 11:38pm
9.375

College Algebra  amy, Wednesday, January 8, 2014 at 9:25pm
how much acid is in 50 liters of 80% solution
Answer This Question
Related Questions
 Chemistry  I'm not sure how to do these...I keep getting the wrong answers... ...
 algebra  a chemist has 12% hydrochloric acid+24% hydrochloric. How many of each...
 Algebra 2  One hundred liters of a 57.84% acid solution is obtained by mixing a...
 Algebra 2  One hundred liters of a 57.84% acid solution is obtained by mixing a...
 Chemistry  14.6 mL of hydrochloric acid is completely neutralized by 25.0 mL of...
 stomach  Under certain abnormal conditions, the stomach does not secrete ...
 Chemistry  Which of the following is an example of a physical change ? A) Zinc ...
 chem  If 0.752 g of pure sodium carbonate was dissolved in water and the ...
 Chemistry  If you had one gallon of concentrated hydrochloric acid (12 N) and ...
 chemistry  use and activity series to Identify two metals that will not ...
More Related Questions