If to convert from grams to moles. You have to divide the # of grmas over the Atomic Weight of the compound (element).
Then, how do I convert from moles to grams? I multiply grams times Atomic Weight?
2006-12-18 15:13:39 · 7 answers · asked by R B 3 in Science & Mathematics ➔ Chemistry
You do it backwardsish. All you do is MULTIPLY the # of grams with the atomic wieght of the element.
It should look like this for both:
Grams > Moles
(# of grams) -------------- 1
_________ ---times----- ______
1 -------------------------- (atomic weight)
Moles > Grams
(# moles)-----------------(atomic weight)
________----times-------______________
1 --------------------------------- 1
I hope that makes some sense to you.
2006-12-18 16:04:59 · answer #1 · answered by chris 4 · 0⤊ 0⤋
:< To convert moles to grams is multiply the grams of the compound(Relative Atomic Mass @ Relative Formula Mass) with the moles that have been given!!
2006-12-18 15:27:40 · answer #2 · answered by handsome007_law 2 · 0⤊ 0⤋
In chemistry, the mole is the standard measurement of amount. When substances react, they do so in simple ratios of moles. However, balances give readings in grams. Balances DO NOT give readings in moles.
So the problem is that, when we compare amounts of one substance to another using moles, we must convert from grams, since this is the information we get from balances.
There are three steps to converting moles of a substance to grams:
Determine how many moles are given in the problem.
Calculate the molar mass of the substance.
Multiply step one by step two.
2006-12-18 15:17:47 · answer #3 · answered by jamaica 5 · 0⤊ 1⤋
to go from g to mols = given grams/1 X 1mol/molar mass of element in g. This gives Mols as the g cancel.
to go the other way... set it up the opposite way.
Start with given Mols/1 X molar mass in G/1mol. this gives g as mols cancel out.
2006-12-18 15:17:58 · answer #4 · answered by itutorchem 2 · 0⤊ 0⤋
Yup, number of moles times the molar mass. Good job, good luck.
2006-12-18 15:15:50 · answer #5 · answered by Mike J 3 · 1⤊ 0⤋
formula: mass x (mol/molar mass of molecule) a million. locate the molar mass of the molecule Al I3. So on your periodic table, locate Aluminum 26.982, and that i is 126.ninety one a million Al = 26.982 3 I = 3(126.ninety one) = 380.seventy 3 molar mass = a million Al + 3 I = 26.982 + 380.seventy 3 = 407.seventy one 2. Plug values into equation 15g of ALI3 x (a million mol / 407.seventy one g in line with ALI3 molecule) 3. make certain with the help of utilizing dimensional diagnosis 15g of ALI3 x (a million mol / 407.seventy one g ALI3 ) = .0368 mols Your answer is .0368 mols
2016-11-30 22:53:53 · answer #6 · answered by Anonymous · 0⤊ 0⤋
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2014-12-08 20:08:42 · answer #7 · answered by Anonymous · 0⤊ 0⤋