The mass of 6,022x10^20 Molecules og H2SO4 is:
I suppose 98 x 10^-3
Correct is 98mg. That must be wrong in my opinion!
2007-06-05 02:46:31 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
You know that The Molecular Weight of H2So4 is 98gm/mol.
Means The weight of 1 mol of H2So4 is 98gm.
In a 1 mol there are 6.022 X 10^23 atoms of H2So4.
hereyour ? is The mass of 6,022x10^20 Molecules of H2SO4 is:
Now
atoms weight
6.022X10^23 98gm
6.022X10^20 ? gm
A N D It will be 98X10^-3 gm. Means 98miligrams.
i n s h o r t = 98mg
2007-06-05 03:04:20 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Nope, 98 mg is correct!
One mole of anything is 6.023x10^23 units. The number of H2SO4 molecules in the problem above represents one millimole.
Therefore, you have 0.001 moles of H2SO4, thus you have 1/1000 of the mass -- the molecular weight of H2SO4 is 98.08 grams/mole, so the mass of one millimole is 98.08/1000, or 0.09808 grams, or 98 milligrams.
2007-06-05 02:53:07 · answer #2 · answered by Dave_Stark 7 · 0⤊ 0⤋
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2016-12-18 14:28:12 · answer #3 · answered by Anonymous · 0⤊ 0⤋
your answer 98x 10^-3 is in grams isnt it? 1 x 10^-3 g = 1 mg thus the answer is correct
2007-06-05 02:51:22 · answer #4 · answered by Trina C 2 · 2⤊ 0⤋
it's mol wt divided by 10e3, which is the just what you have already figured. mol wt is 98 grams per mole, so 98 mgs is correct
2007-06-05 02:59:06 · answer #5 · answered by Anonymous · 0⤊ 0⤋
6.022x10^20 is .001 of one mole
which means that 98g/mol x .001
yes, the answer is correct
2007-06-05 03:02:59 · answer #6 · answered by Uncle Under 5 · 1⤊ 0⤋
buddy,
mg=10^-3g
2007-06-05 02:53:39 · answer #7 · answered by arjun 1 · 1⤊ 0⤋