Question

12. (i) How many grams of H2S are contained in 0.40 mole of H2S ?
(ii) How many gram atoms of H and S are contained in 0.40 mole of H2S ?
(iii) How many molecules of H2S are contained in 0.40 mole of H2S?
(iv) How many atoms of H and S are contained in 0.40 mole of H2S ?​

Answer 1

Answer:

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Explanation:

1. 0.80 gram
2. 1mole = 1 gram atom. Therefore, 0.40 mole of H2S contains 2 x 0.40 = 0.80 gram atoms of H and 0.40 gram atoms of S.
3. 1mole = 1 gram atom. Therefore, 0.40 mole of H2S contains 2 x 0.40 = 0.80 gram atoms of H and 0.40 gram atoms of S.
4. 1mole = 1 gram atom. Therefore, 0.40 mole of H2S contains 2 x 0.40 = 0.80 gram atoms of H and 0.40 gram atoms of S