SOLUTION: a pharmacist wants to make 40 ml of a 76% hydrogen peroxide solution how many mls of 55% hydrogen peroxide must he mix with 85% hydrogen peroxide to make a desire solution
Algebra.Com
Question 774046: a pharmacist wants to make 40 ml of a 76% hydrogen peroxide solution how many mls of 55% hydrogen peroxide must he mix with 85% hydrogen peroxide to make a desire solution
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = ml of 55% solution needed
Let = ml of 85% solution needed
----------
(1)
(2)
-----------------------------
(2)
(2)
(2)
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)
and
(1)
(1)
12 ml of 55% solution are needed
28 ml of 85% solution are needed
check:
(2)
(2)
(2)
(2)
(2)
OK
RELATED QUESTIONS
A pharmacist wants to make 18 ml of a 6% hydrogen peroxide solution. How many mls of 5%... (answered by josmiceli)
want to make 12 liters of a 40% hydrogen peroxide solution consisting of a combo of 70% (answered by checkley79)
How many pints of 1% hydrogen peroxide peroxide solution should be mixed with 4% hydrogen (answered by addingup)
I am stuck on this math word problem.
It states: you need to make a 600mL solution of... (answered by KMST)
How many milliliters of a 18% hydrogen peroxide solution and how many milliliters of a... (answered by josgarithmetic)
How many milliliters of a 25% hydrogen peroxide solution and how many milliliters of a 9% (answered by lwsshak3)
how many milliliters of a 10% hydrogen peroxide solution and how many milliliters of a 2% (answered by stanbon,Alan3354)
A chemist mixes a 10% hydrogen peroxide solution with a 25% hydrogen peroxide solution to (answered by rothauserc)
A pharmacist needs to make 200 mL of a 10% hydrogen peroxide solution. She will make it... (answered by josgarithmetic,stanbon)