A pharmacist needs to strengthen a 15% alcohol solution
to one of 32% alcohol.How much pure alcohol should be added to 800 ml of 15% solution?
Answers
Answered by
6
Add 200ml of pure alcohol
sinju678nimna:
How...Explain
Answered by
5
Answer:
Required amount is 160 ml.
Step-by-step explanation:
Given : A pharmacist needs to strengthen a 15% alcohol solution to one of 32% alcohol.
To find : How much pure alcohol should be added to 800 ml of 15% solution?
Solution :
Let x be the amount of pure alcohol.
15% alcohol solution
Amount of active ingredient = 0.15x ml
Pure alcohol is 800 ml added
So, Amount of active is 800-x ml
32% solution of alcohol:
Amount of active is
The required equation is,
Amount of pure alcohol needed for the solution is
800-x =800-640= 160 ml
Therefore, Required amount is 160 ml.
Similar questions
English,
7 months ago
Science,
7 months ago
Chemistry,
7 months ago
Chemistry,
1 year ago
Social Sciences,
1 year ago