What is the mass of 0.5 mol of hydrogen sulfide?
| December 27, 2020 | education
Given:
n (H2S) = 0.5 mol
To find:
m (H2S) -?
Decision:
1) Using the periodic system of D.I.Mendeleev, calculate the molar mass of hydrogen sulfide:
M (H2S) = Mr (H2S) = Ar (H) * N (H) + Ar (S) * N (S) = 1 * 2 + 32 * 1 = 34 g / mol;
2) Calculate the mass of hydrogen sulfide:
m (H2S) = n (H2S) * M (H2S) = 0.5 * 34 = 17 g.
Answer: The mass of H2S is 17 g.
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