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ludmilkaskok [199]

3 years ago

13

How many milliliters of pure acid must be added to 100 milliliters of a 10% acid solution in order to obtain a 20% acid solution

.

1 answer:

Nesterboy [21]3 years ago

8 0

Answer:

22.5

Step-by-step explanation:

0.80x=10 divide each side by 0.80

x=12.5 ml-----------------amount of pure acid needed

CK

12.5+10=0.20(100+12.5)=0.20(112.5)

22.5=22.5

Hope this helps

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