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Chemistry
Deja Reed
2 December, 09:09
Convert 3.00 moles As2S3 to grams.
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Nia Singh
2 December, 11:11
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738.1146 grams, your're welcome
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Kaitlynn Abbott
2 December, 13:02
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738 grams
Explanation:
As2S3 is called Arsenic Sulfide.
The formula needed here is
Number of moles (n) = m : mm
where m = mass of the substance/compound
mm = molar mass of the same substance/compound
Here, the number of moles has been given to be 3 moles, we can determine the molar mass of the substance from the chemical formula given, hence our unknown is the mass of the compound.
Molar mass of Arsenic (As) is 75 g/mol while that of Sulfur is 32 g/mol.
Hence, the molar mass of the compound; As2S3 will be
(75 x 2) + (32 x 3) = 246 g/mol
From the formula given earlier, we can deduce that mass of As2S3 will be number of moles multiplied by molar mass of As2S3
m = n x mm
m = 3 x 246
m = 738 grams
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