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Atoms and Molecules
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12/11/2021 4:18 pm
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Calculate the molecular masses of the following compounds:
(a) Hydrogen sulphide, H2S
(b) Carbon disulphide, CS2
(Atomic masses: H = 1 u, S = 32 u, C = 12 u)
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12/11/2021 4:21 pm
(a) Molecular mass of hydrogen sulphide (H2S) = 2 x H + 1 x S
= (2 + 32) u = 34u
(b) Molecular mass of Carbon disulphide (CS2) = 1 x C + 2 x S
= (12 + 2 x 32) u = 76 u