1. SO2:
1) M(SO2) = Ar(S) * N(S) + Ar(O) * N(O) = 32 * 1 + 16 * 2 = 64 г/моль;
2) n(SO2) = N / NA = 9*10^23 / 6,02*10^23 = 1,5 моль;
3) m(SO2) = n * M = 1,5 * 64 = 96 г;
4) V(SO2) = n * Vm = 1,5 * 22,4 = 33,6 л.
2. NH3:
1) M(NH3) = Ar(N) * N(N) + Ar(H) * N(H) = 14 * 1 + 1 * 3 = 17 г/моль;
2) n(NH3) = m / M = 68 / 17 = 4 моль;
3) V(NH3) = n * Vm = 4 * 22,4 = 89,6 л;
4) N(NH3) = n * NA = 4 * 6,02*10^23 = 24,08*10^23.
3. CH4:
1) M(CH4) = Ar(C) * N(C) + Ar(H) * N(H) = 12 * 1 + 1 * 4 = 16 г/моль;
2) m(CH4) = n * M = 0,5 * 16 = 8 г;
3) V(CH4) = n * Vm = 0,5 * 22,4 = 11,2 л;
4) N(CH4) = n * NA = 0,5 * 6,02*10^23 = 3,01*10^23.
4. PH3:
1) M(PH3) = Ar(P) * N(P) + Ar(H) * N(H) = 31 * 1 + 1 * 3 = 34 г/моль;
2) n(PH3) = V / Vm = 44,8 / 22,4 = 2 моль;
3) m(PH3) = n * M = 2 * 34 = 68 г;
4) N(PH3) = n * NA = 2 * 6,02*10^23 = 12,04*10^23.
5. H2S:
1) M(H2S) = Ar(H) * N(H) + Ar(S) * N(S) = 1 * 2 + 32 * 1 = 34 г/моль;
2) n(H2S) = m / M = 10,2 / 34 = 0,3 моль;
3) V(H2S) = n * Vm = 0,3 * 22,4 = 6,72 л;
4) N(H2S) = n * NA = 0,3 * 6,02*10^23 = 1,806*10^23.
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Answers & Comments
1. SO2:
1) M(SO2) = Ar(S) * N(S) + Ar(O) * N(O) = 32 * 1 + 16 * 2 = 64 г/моль;
2) n(SO2) = N / NA = 9*10^23 / 6,02*10^23 = 1,5 моль;
3) m(SO2) = n * M = 1,5 * 64 = 96 г;
4) V(SO2) = n * Vm = 1,5 * 22,4 = 33,6 л.
2. NH3:
1) M(NH3) = Ar(N) * N(N) + Ar(H) * N(H) = 14 * 1 + 1 * 3 = 17 г/моль;
2) n(NH3) = m / M = 68 / 17 = 4 моль;
3) V(NH3) = n * Vm = 4 * 22,4 = 89,6 л;
4) N(NH3) = n * NA = 4 * 6,02*10^23 = 24,08*10^23.
3. CH4:
1) M(CH4) = Ar(C) * N(C) + Ar(H) * N(H) = 12 * 1 + 1 * 4 = 16 г/моль;
2) m(CH4) = n * M = 0,5 * 16 = 8 г;
3) V(CH4) = n * Vm = 0,5 * 22,4 = 11,2 л;
4) N(CH4) = n * NA = 0,5 * 6,02*10^23 = 3,01*10^23.
4. PH3:
1) M(PH3) = Ar(P) * N(P) + Ar(H) * N(H) = 31 * 1 + 1 * 3 = 34 г/моль;
2) n(PH3) = V / Vm = 44,8 / 22,4 = 2 моль;
3) m(PH3) = n * M = 2 * 34 = 68 г;
4) N(PH3) = n * NA = 2 * 6,02*10^23 = 12,04*10^23.
5. H2S:
1) M(H2S) = Ar(H) * N(H) + Ar(S) * N(S) = 1 * 2 + 32 * 1 = 34 г/моль;
2) n(H2S) = m / M = 10,2 / 34 = 0,3 моль;
3) V(H2S) = n * Vm = 0,3 * 22,4 = 6,72 л;
4) N(H2S) = n * NA = 0,3 * 6,02*10^23 = 1,806*10^23.