A chemist mixes a 10% hydrogen peroxide solution with a 25% hydrogen peroxide solution to create 30 liters of a 15% hydrogen per

Question

4 years ago

5

oxide solution. How many liters of the 10% solution did the chemist use to make the 15% solution?

2 answers:

Igoryamba · Answer 1 · 2022-01-27T18:26:36+03:00

Igoryamba4 years ago

6 0

The answer is 20 l. Seethe solution on the photo.

docker41 [41] · Answer 2 · 2022-01-27T20:02:45+03:00

5 0

X+y= 30
Y=30-X
.15(30)= 4.50
.10x+.25(30-X)=4.50
.10x+7.50-.25x=4.50
-.15x=4.50-7.50
-.15x=-3
Divide by -.5
X=20