Berikut ini adalah pertanyaan dari dragonballzkai52 pada mata pelajaran Kimia untuk jenjang Sekolah Menengah Atas
hydroxide
All gas volumes were measured at the same temperature and pressure.
What volume of gas was absorbed by the alkali?
Jawaban dan Penjelasan
Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.
Jawaban:
Methane = CH4
Ethane = C2H6
//First off, we need to understand that when hydrocarbons get combusted, they produce CO2 and H2O.
//Now we'll need to write down the equation and balance it out like this:
CH4(g) + 2O2(g) ---> CO2(g) + 2H2O(l)
C2H6(g) + 3.5O2(g) ---> 2CO2(g) + 3H2O(l)
//From this equation, we know that the reaction produces CO2 as a residual gas.
//Then the question says that the residual gas is then passed through aqueous potassium hydroxide (KOH). Thus, we would also need to react the CO2 and KOH as shown:
CO2(g) + OH-(aq) ---> CO3(-2)(aq) + H2O(l)
//Volume of CO2 produced by CH4 and C2H6 is 10 and 20 cm^3 respectively. Thus, the total volume of CO2 produced is 30 cm^3
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Last Update: Mon, 19 Jul 21