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telo118 [61]
2 years ago
13

How many molecules are in a 6.82 gram sample of Hydrogen Sulfide (H2S)

Chemistry
1 answer:
Alinara [238K]2 years ago
5 0

Answer:

1.204×10^(23)

Explanation:

Molecular weight of H2S,  M = 1*2+32 = 34

weight of sample, m = 6.82 gram

now number of moles, n= m/M

n= 6.82/34 = 0.200 moles

1 mole has 6.023×10^(23) molecules of H2S.

therefore 0.2 moles of H2S will have  0.2×6.023×10^(23) = 1.204×10^(23) number of H2S molecules.

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