i got a percent purity of 121%, is this possible? i think i have made a mistake?
2007-05-15 05:39:49 · 6 answers · asked by PunPride 2 in Science & Mathematics ➔ Chemistry
Yes, you have made a mistake - there is no way that anything can be greater that 100% anything.
2007-05-15 05:42:40 · answer #1 · answered by Dr Dave P 7 · 2⤊ 0⤋
Many times students get over 100% purity....
In reality it's not possible.
Most of the time it's human error or equipment error.
This is why early experimenters performed experiments many, many times before making any conclusions.
You're limited to 1 try and it doesn't always come out the way you plan.
I've done labs for 30+ years and I still get some that don't work the way they should.
2007-05-15 12:53:19 · answer #2 · answered by The Cheminator 5 · 0⤊ 0⤋
I have said it in ur prev question assuming that ur typing a question from a book.
Now, since u r actually performing it in lab its quite natural ( human error).
I think that the benzoic acid sample was quite pure & u got some human errors in measurements.
Try to conduct the expt again.
best wishes frm a sufferer ( never been able to get correct in first attempt in lab expts)
2007-05-15 12:47:49 · answer #3 · answered by s0u1 reaver 5 · 1⤊ 0⤋
reaction yields and purity of a compound cannot be abover 100%.
2007-05-15 13:22:23 · answer #4 · answered by shiara_blade 6 · 0⤊ 0⤋
Yes it is a mistake.
2007-05-15 13:02:50 · answer #5 · answered by ag_iitkgp 7 · 0⤊ 0⤋
You have an impossible answer. Check your calculations.
2007-05-15 12:43:03 · answer #6 · answered by Sarah D 1 · 1⤊ 1⤋