Chemistry question

[BigL]

trying to help my 10tb grader with his chemistry. Its been since I took it in 1987 that I've done this. Can anyone help and show their work?

C7H6O3 + C4H6O3 = C9H8O4 + C2H4O2

if 200g of C7H6O3 and 500g of C4H6O3 were used and it resulted in 231g of C9H8O4 what is the percent yield?

I have 38% but not sure thats right.

My son calculated 88%. So at least one of us is wrong, maybe both.

[mojorider]

From Google...

https://www.enotes.com/homework-help/aspirin-percent-yield-548874

Pretty detailed calculation using 2g of salicylic acid, so just scale that up to 200g.

[bigchiefj]

If salicylic acid is the limiting reagent:

(200g/138.121g/mol) will give you moles. It's a 1:1 reaction.

Take the moles and convert to grams aspirin. moles X (180.16g/mol).

This gives theoretical yield. Then divide the 231g actual yield by the theoretical.

[Sasqy]

Oh dang !
I hated chemistry.
Thank God for extra credit and a forgiving professor.
I’m no help lol

[RR 314]

I keep getting 1.21 Jigawatts. Odd.

[Wall_Hanger]

i keep getting 1.21 jigawatts. Odd.

great scott!