SOLUTION: I have 60 mL of a 10% minoxidil solution. How many mL of alcohol would I need to add to the 60 mL of minoxidil to reduce the strength by 1%? 2.5%?

Question 373837: I have 60 mL of a 10% minoxidil solution. How many mL of alcohol would I need to add to the 60 mL of minoxidil to reduce the strength by 1%? 2.5%?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = ml of alcohol to be added
given:
ml of minoxidil in 10% solution:
ml

6.667 ml of alcohol need to be added
to reduce the strength by 1%
and

20 ml of alcohol need to be added
to reduce the strength by 2.5%
RELATED QUESTIONS
how many milliliters of pure water should a pharmasist add to 50 ml of a 15% minoxidil... (answered by josmiceli)

how many milliliters of pure water should a pharmacist add to 50 ml of a 15% minoxidil... (answered by stanbon)

A pharmacist wishes to mix a solution that is 6% Minoxidil. She has on hand 60 ml of 2%... (answered by stanbon)

A pharmacist wishes to mix a solution that is 8% minoxidil. She has 70 ml of 5% solution (answered by josmiceli)

A pharmacist wishes to mix a solution that is 8% minoxidil. She has 70 ml of 4% solution (answered by TimothyLamb)

A 150 mL solution of alcohol in water is 75% alcohol. How many mL of a 60% solution... (answered by TimothyLamb)

You need a 95% alcohol solution. On hand, you have a 60 mL of a 15% alcohol mixture. How... (answered by richwmiller)

You need a 55% alcohol solution. On hand, you have a 45 mL of a 30% alcohol mixture. You... (answered by josgarithmetic,richwmiller)

You need a 20% alcohol solution. On hand, you have a 400 mL of a 15% alcohol mixture. You (answered by josgarithmetic)