Asked by Sierra
What is the percent by mass of hydrogen in aspirin C2H8O4?
Answers
Answered by
DrBob222
molar mass aspirin = ? 2*12 + 8*1 + 4*16 = ?
% H = (mass H/total mass)*100 = ?
% H = (mass H/total mass)*100 = ?
Answered by
Sierra
6.25 percent is my answer
Thanks a lot for helping me
Thanks a lot for helping me
Answered by
DrBob222
I don't get 6.25.
molar mass C2H8O4 = about 96 but you can look it up more accurately if you wish.
Then mass H is 8 (again you can be more accurate if you wish)
Then (8/96)*100 = about 8.3%.
<b>Please note. I looked up the formula for aspirin and I didn't get what you posted. The formula for aspirin is C9H8O4 with a molar mass of about 180.16
Then (8/180)*100 = 4.5% but that's an estimate.</b>
molar mass C2H8O4 = about 96 but you can look it up more accurately if you wish.
Then mass H is 8 (again you can be more accurate if you wish)
Then (8/96)*100 = about 8.3%.
<b>Please note. I looked up the formula for aspirin and I didn't get what you posted. The formula for aspirin is C9H8O4 with a molar mass of about 180.16
Then (8/180)*100 = 4.5% but that's an estimate.</b>
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