How is the mass in grams of the element converted to amount in moles?
2006-08-27 07:11:57 · 8 answers · asked by allmaddenmister 2 in Science & Mathematics ➔ Chemistry
Divide the number of grams by the molecular weight of the element/compound.
2006-08-27 07:14:20 · answer #1 · answered by Rick C 2 · 0⤊ 0⤋
The mass of the element is the atmic number. That is the number of grams in1 mole. Example He is 2. One mole of helium would weigh 2 grams.
2006-08-27 07:16:14 · answer #2 · answered by Bonnie R 2 · 0⤊ 0⤋
moles = mass/molar mass
Find the molar mass of the element from the periodic table. Insert that, along with the number of grams into the above equation.
Good Luck :-)
2006-08-27 07:22:53 · answer #3 · answered by The ~Muffin~ Man 6 · 0⤊ 0⤋
mass in grams/molecular weight of the element= moles
2006-08-27 07:32:56 · answer #4 · answered by Soledad 2 · 0⤊ 0⤋
The mass in grams is simply divided by the relative atomic mass of that element as in the formula: Mole=mass/relative atomic mass.
for ex-
To find amount in moles of 46 grams of Sodium(Na).
We know that relative atomic mass of sodium from periodic table is 23;
Therefore, amount in moles of sodium=46/23=2 moles.
2006-08-27 07:24:11 · answer #5 · answered by Fahd 2 · 0⤊ 0⤋
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2016-05-15 23:52:44 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Because moles take up mass. Right? So if moles take up mass they probally need mass.Right? So you need to measure land in mass to see how many moles or just count them
2006-08-27 07:17:12 · answer #7 · answered by maureen 1 · 0⤊ 1⤋
take your mole and put it on the scales and then add grams to the other end until they balance!
2006-08-27 08:56:05 · answer #8 · answered by John A 3 · 0⤊ 0⤋