http://prntscr.com/cl8qvf

So far my answers are either 91.8 g acetic acid, or if calculating in the 97%, I get 94.6

I've put 90, 92, 95, 90. (with a decimal)... none are right, what am I doing wrong? :(

Question

http://prntscr.com/cl8qvf

So far my answers are either 91.8 g acetic acid, or if calculating in the 97%, I get 94.6

I've put 90, 92, 95, 90. (with a decimal)... none are right, what am I doing wrong? :(

aaronq · Answer

You're not really saying how you tried the question, so I can't really tell you what you're doing wrong, but how to do it. Steps make it clear.

1. Use the mass (79g) of acetyl Cl to find moles of AcCOOH, understand that this is only 84% of the moles, so you need to scale up to have 100%.

2. Convert moles of acetic acid to mass and find 100% of the weight of the solution