George wishes to increase the percent of acid in 50ml of a 15% acid solution in water to 25% acid, how much pure acid must you a

Question

denis23 [38]

3 years ago

7

George wishes to increase the percent of acid in 50ml of a 15% acid solution in water to 25% acid, how much pure acid must you a

dd?

Mathematics

2 answers:

laiz [17] · Answer 1 · 2022-06-26T11:55:39+03:00

laiz [17]3 years ago

7 0

MARK BRAINLIEST

you have to add 6 and 2/3ml of pure acid

Step-by-step explanation:

common sense

Andreyy89 · Answer 2 · 2022-06-26T10:31:28+03:00

Andreyy893 years ago

4 0

Amount times concentration=quantity

50(0.15)+x(1)=(50+x)(0.25)
x=amount of acid to add

so
7.5+x=12.5+0.25x
minus 0.25x both sides
7.5+0.75x=12.5
minus 7.5 both sides
0.75x=5
divide both sides by 0.75
x=6.666666666
converts to 6 and 2/3

you have to add 6 and 2/3ml of pure acid