SOLUTION: A chemist mixes 10L of a solution that is 30% acid with 30L of a solution that is 50% acid. What is the percent of acid in the new mixture?

Question 633939: A chemist mixes 10L of a solution that is 30% acid with 30L of a solution that is 50% acid. What is the percent of acid in the new mixture?
Answer by Maths68(1474) (Show Source): You can put this solution on YOUR website!

Solution A
=========
Amount = 10ml
Concentration =30% =0.3
Solution B
=========
Amount = 30ml
Concentration =50% = 0.5
Mixture
========
Amount =10+30 = 40ml
Concentration =x
[Amount Solution A * Concentration A] + [Amount Solution B * Concentration of B] =[Amount of Mixture *Concentration of Mixture]
(10)(0.3)+(30)(0.5)=(40)(x)
3+15=40x
18=40x
x=18/40
x=0.45
x=45/100=45%
A chemist mixes 10L of a solution that is 30% acid with 30L of a solution that is 50% acid to prepare 40ml mixture that is 45% acid.
RELATED QUESTIONS
A chemist mixes 12 L of a solution that is 45% acid with 8 L of a solution that is 75... (answered by lwsshak3)

A chemist mixes 12L of a solution that is 45% acid with 8L of a solution that is 70%... (answered by richwmiller)

a chemist mixes 12 L of a solution that is 45% acid with 8 L of a solution that is 70%... (answered by brucewill,amalm06,ikleyn)

a chemist mixes 150ml of solution that is 45% acid with 100ml of pure acid how many ml... (answered by addingup,stanbon)

chemist mixes an 8% hydrochloric acid solution with a 5% hydrochloric acid solution. How... (answered by Earlsdon)

Is Nasim mixes 40mL of a 20% acid solution with 60 mL of a 35% acid solution. What... (answered by josgarithmetic)

A chemist mixes 90 milliliters of a solution that is 75% acid with 35... (answered by ikleyn,josgarithmetic)

A chemist mixes 50 milliliters of a solution that is 20% acid with 75 milliliters of a... (answered by Alan3354)

A chemist mixes an 11% acid solution with a 4 % acid solution . How many milliters of... (answered by lwsshak3)