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

Answer:

Please see the explanation below

Explanation:

Apply a material balance with respect to acetic acid.

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

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

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

Therefore,

#8/100*250=5/100*x+10/100*(250-x)#

Solving this equation for #x#

#0.05x+25-0.1x=20#

#0.05x=5#

#x=100#

So,

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

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