Hi! I'm doing some chemistry, and I've reached a part about moles, which, in my opinion, is simple but they try to make it more difficult than it has to be (who knows, maybe I'm over-simplifying it and it'll bite me in the butt later). That's what I'm trying to find out. Please tell me if this is correct (I've read through like 10 pages of explaining and this is basically what I've summized).
For the question, "The molecular formula of hydrogen peroxide is H[sbscrpt2]O[sbscrpt2]. What is the gram molecular mass?"
So basically, take the atomic mass of 1 atom of each element. That equals 1 mol. Multiply it by however many moles there are (a.k.a. how many atoms of that element there are), and that is the gram molecular mass.
Is that right? By my figuring that would work out to:
(# of atoms, written as mol) X (atomic mass) = answer in g
2 mol H X 1.0g / 1 mol H = 2.0g H
2 mol O X 16.0g / 1 mol O = 32.0g O
Total gmm = 34.0g
Thank you, I really appreciate this!
2007-01-02 04:13:19 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
You are 100 percent correct. And you explained your reasoning very well.
2007-01-02 04:29:13 · answer #1 · answered by richard Alvarado 4 · 1⤊ 0⤋
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2016-05-16 06:38:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Yup, you've got it the only thing to be careful of is how accurate your teacher will want the significant figures.
2007-01-02 04:31:56 · answer #3 · answered by Anonymous · 1⤊ 0⤋
perfect for one mole of H2O2. if you have 2 moles you would multiply it (34) by 2. good luck, chem is fun!
2007-01-02 04:37:02 · answer #4 · answered by Anonymous · 1⤊ 0⤋
Yes that is right dude
2007-01-02 04:57:27 · answer #5 · answered by kyriacos d 2 · 1⤊ 0⤋