SOLUTION: Please help me in this problem, I need this tommorow: How much pure alcohol must be added to 25 mL of water to produce 50% alcoholic solution?

Question 469851: Please help me in this problem, I need this tommorow: How much pure alcohol must be added to 25 mL of water to produce 50% alcoholic solution?
Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How much pure alcohol must be added to 25 mL of water to produce 50% alcoholic solution?
----
Equation:
alcohol + alcohol = alcohol
---
x + 0*25 = 0.5(x+25)
---
Multiply thru by 100
100x + 0 = 50x+50*25
50x = 50*25
x = 25mL (amt. of pure alcohol needed)
==========================
Cheers,
Stan H.
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

of pure alcohol must be added to 25 mL of water to produce 50% alcoholic solution
RELATED QUESTIONS
Hello tutor, I need help on this word problem, please help me. How many liters of a... (answered by ankor@dixie-net.com)
Please help me slove this mixture You need a 10% alcohol solution. On hand, you have a (answered by ankor@dixie-net.com)
Please help me answer this question. How much water should be added to a 22 mL of 15%... (answered by TimothyLamb)
please help. How many liters of water must be added to 10 liters of 30% alcohol in... (answered by Alan3354)
1.moonshine has 50 liters of a 70% alcohol solution.how many liters of pure alcohol must... (answered by stanbon)
Please help me solve the following: a 12 liter antifreeze solution is made up of water... (answered by lwsshak3)
Ten liters of an alcohol-water solution contains 70% alcohol. The alcohol must be reduced (answered by josgarithmetic)
How much pure alcohol must be added to a mixture of 12 liters of alcohol and 30 liters of (answered by josgarithmetic)
How much pure alcohol must be added to a mixture of 12 liters of alcohol and 30 liters of (answered by TimothyLamb,josgarithmetic)