Marryam has a bottle of 5% acetic acid and a bottle of of 10% acetic acid. How much of each should she use to make 250 mL of 8 acetic acid?

1 Answer
May 23, 2018

Please see the explanation below

Explanation:

Apply a material balance with respect to acetic acid.

Volume of 8%8% acetic acid is V=250mlV=250ml

Volume of 5%5% acetic acid is =xml=xml

Volume of 10%10% acetic acid is =(250-x)ml=(250x)ml

Therefore,

8/100*250=5/100*x+10/100*(250-x)8100250=5100x+10100(250x)

Solving this equation for xx

0.05x+25-0.1x=200.05x+250.1x=20

0.05x=50.05x=5

x=100x=100

So,

Volume of 5%5% acetic acid is =100ml=100ml

Volume of 10%10% acetic acid is =150ml=150ml