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1. CH4 + 2O2 ==> CO2 + 2H2O .....(1) (sudah setara)
2. C2H6 + 7/2 O2 ===> 2CO2 + 3H2O.....(2) (sudah setara)
vol CH4 = 0,6 L (60% x 1 L)
vol C2H6 = 0,4 L
vol O2 bisa dihitung secara terpisah Vol O2 di pers (1) = 2/1 x vol CH4 = 1,2 L Vol O2 di pers (2) = 7/2÷1 x vol C2H6 = 1,4 LVol O2 total = 2,6 L
v ch4 = 60%.1L = 0,6 L
v o2 = 1,2L
c2h4 + 3o2 -> 2co2 + 2h2o
v c2h4 = 40%.1L = 0,4L
v o2 = 1,2 L
v o2 total = 2,4L
2. n1/v1 = n2/v2
1/20 = n2/20
mol hidrogen = 1 mol
3. 2c2h5oh + 2na -> 2c2h5ona + h2