Please explain
2006-09-10 09:02:06 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
You know, I used to be able to figure that when I was taking chemistry class. But I forgot. And I really don't care at this point in time. Given time, you too will not care; unless you become a chemistry teacher or become a scientist in that field. Anyhow, good bye and good luck!
2006-09-10 09:06:13 · answer #1 · answered by Yes 3 · 1⤊ 1⤋
Hmmm... my chemistry is HORRIBLE... how many atoms are in a mole? 6.02x 10^23?...
if here are 3 atoms of hydrogen in each molecule of NH3 then you will have 3*3.78*(6.02x10^23) atoms of hydrogen...
you will have to look up the exact number .. is it 6.02^23 atoms in mole?
2006-09-10 16:09:15 · answer #2 · answered by ♥Tom♥ 6 · 0⤊ 0⤋
3.78 mols ammonia times 3mols H atoms per mol ammonia
all that times avogadro's number, 6.02 times 10^23. Use your teachers favorite avogadro number (6.02, 6.022, 6.023)
Using 6.022 x10^23, I get 6.74 x10^24, which correctly has 3 significant digits.
2006-09-10 16:11:15 · answer #3 · answered by Ren Hoek 5 · 0⤊ 0⤋