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S_A_V [24]
3 years ago
15

Maki uses 20 gallons of a solution with an unknown ethanol concentration and 60 gallons of a 12% ethanol solution to make 80 gal

lons of a 10% solution. What is the value of x, the concentration of the unknown ethanol solution?.
a. 0.02.
b. 0.04.
c. 0.05.
d. 0.08
Chemistry
2 answers:
Leokris [45]3 years ago
5 0

the correct answer is B

Marrrta [24]3 years ago
3 0
The equation is:
x * 20 + 0.12 * 60 = 0.10 * 80
20 x + 7.2 = 8
20 x = 8 - 7.2
20 x = 0.8
x = 0.8 : 20 = 0.04 ( or 4% )
Answer: B ) 0.04
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