1)
Дано
w(C) = 88.89% = 0.8889
CxHy
y = 2x-2
Решение
w(H) = 1 - w(C) = 0.1111
m = 100 г
m(C) = mw(C) = 88.89 г
m(H) = mw(H) = 11.11 г
n(C) = m(C) / Ar(C) = 88.89 / 12 = 7.4075 моль
n(H) = m(H) / Ar(H) = 11.11 / 1 = 11.11 моль
n(C) : n(H) = x : y = 7.4075 : 11.11
x : y = 1 : 1.5
x : y = 2 : 3
x : y = 4 : 6
Ответ: C4H6
2)
w(C) = 83.3% = 0.833
y = 2x+2
w(H) = 1 - w(C) = 0.167
m(C) = mw(C) = 83.3 г
m(H) = mw(H) = 16.7 г
n(C) = m(C) / Ar(C) = 83.3 / 12 = 6.9417 моль
n(H) = m(H) / Ar(H) = 16.7 / 1 = 16.7 моль
n(C) : n(H) = x : y = 6.9417 : 16.7
x : y = 1 : 2.4
x : y = 5 : 12
Ответ: C5H12
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Verified answer
1)
Дано
w(C) = 88.89% = 0.8889
CxHy
y = 2x-2
Решение
w(H) = 1 - w(C) = 0.1111
m = 100 г
m(C) = mw(C) = 88.89 г
m(H) = mw(H) = 11.11 г
n(C) = m(C) / Ar(C) = 88.89 / 12 = 7.4075 моль
n(H) = m(H) / Ar(H) = 11.11 / 1 = 11.11 моль
n(C) : n(H) = x : y = 7.4075 : 11.11
x : y = 1 : 1.5
x : y = 2 : 3
x : y = 4 : 6
Ответ: C4H6
2)
Дано
w(C) = 83.3% = 0.833
CxHy
y = 2x+2
Решение
w(H) = 1 - w(C) = 0.167
m = 100 г
m(C) = mw(C) = 83.3 г
m(H) = mw(H) = 16.7 г
n(C) = m(C) / Ar(C) = 83.3 / 12 = 6.9417 моль
n(H) = m(H) / Ar(H) = 16.7 / 1 = 16.7 моль
n(C) : n(H) = x : y = 6.9417 : 16.7
x : y = 1 : 2.4
x : y = 5 : 12
Ответ: C5H12