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Reaksi pembakaran metana menurut reaksi berikut: Jika jumlah molekul yang bereaksi adalah , tentukan: a. Jumlah molekul yang bereaksi b. Jumlah molekul yang dihasilkan c. Jumlah molekul

Reaksi pembakaran metana begin mathsize 14px style C H subscript 4 end style menurut reaksi berikut:
 

begin mathsize 14px style C H subscript 4 open parentheses italic g close parentheses and 2 O subscript 2 open parentheses italic g close parentheses yields C O subscript 2 open parentheses italic g close parentheses and 2 H subscript 2 O open parentheses italic g close parentheses end style


Jika jumlah molekul begin mathsize 14px style C H subscript 4 end style yang bereaksi adalah begin mathsize 14px style 6 cross times 10 to the power of 23 end style, tentukan:

a. Jumlah molekul begin mathsize 14px style O subscript 2 end style yang bereaksi

b. Jumlah molekul begin mathsize 14px style C O subscript 2 end style yang dihasilkan

c. Jumlah molekul begin mathsize 14px style H subscript 2 O end style yang dihasilkanspace

Jawaban:

Reaksi yang terjadi adalah

begin mathsize 14px style C H subscript 4 open parentheses italic g close parentheses and 2 O subscript 2 open parentheses italic g close parentheses yields C O subscript 2 open parentheses italic g close parentheses and 2 H subscript 2 O open parentheses italic g close parentheses end style


a. Jumlah molekul begin mathsize 14px style O subscript 2 end style

Perbandingan koefisien menunjukkan perbandingan mol
 

 begin mathsize 14px style C H subscript 4 space colon space O subscript 2 space colon space C O subscript 2 space colon space H subscript 2 O space equals 1 colon 2 colon 1 colon 2 begin inline style sum with partikel below end style begin inline style space end style begin inline style O subscript 2 end style begin inline style equals end style fraction numerator mol space O subscript 2 over denominator mol space C H subscript 4 end fraction begin inline style cross times end style begin inline style sum with partikel below end style begin inline style space end style begin inline style C H subscript 4 end style begin inline style sum with partikel below end style space O subscript 2 equals 2 over 1 cross times begin inline style sum with partikel below end style space C H subscript 4 begin inline style sum with partikel below end style begin inline style space end style begin inline style O subscript 2 end style begin inline style equals end style begin inline style 2 end style begin inline style cross times end style begin inline style 6 end style begin inline style cross times end style begin inline style 10 to the power of 23 end style begin inline style sum with bold partikel space below end style O subscript bold 2 bold equals bold 12 bold cross times bold 10 to the power of bold 23 bold space bold molekul end style


b. Jumlah molekul begin mathsize 14px style C O subscript 2 end style


begin mathsize 14px style begin inline style sum with partikel below end style begin inline style space end style begin inline style C O subscript 2 end style begin inline style equals end style fraction numerator mol space C O subscript 2 over denominator mol space C H subscript 4 end fraction begin inline style cross times end style begin inline style sum with partikel below end style begin inline style space end style begin inline style C H subscript 4 end style begin inline style sum with partikel below end style space C O subscript 2 equals 1 over 1 cross times begin inline style sum with partikel below end style space C H subscript 4 begin inline style sum with partikel below end style begin inline style space end style begin inline style C O subscript 2 end style begin inline style equals end style begin inline style 1 end style begin inline style cross times end style begin inline style 6 end style begin inline style cross times end style begin inline style 10 to the power of 23 end style begin inline style sum with bold partike l space below end style C O subscript bold 2 bold equals bold 6 bold cross times bold 10 to the power of bold 23 bold space bold molekul end style
 

c. Jumlah molekul begin mathsize 14px style H subscript 2 O end style


begin mathsize 14px style begin inline style sum with partikel below end style begin inline style space end style begin inline style H subscript 2 O end style begin inline style equals end style fraction numerator mol space H subscript 2 O over denominator mol space C H subscript 4 end fraction begin inline style cross times end style begin inline style sum with partikel below end style begin inline style space end style begin inline style C H subscript 4 end style begin inline style sum with partikel below end style space begin inline style begin inline style H end style subscript 2 end style begin inline style O end style equals 2 over 1 cross times begin inline style sum with partikel below end style space C H subscript 4 begin inline style sum with partikel below end style begin inline style space end style begin inline style H subscript 2 O end style begin inline style equals end style begin inline style 2 end style begin inline style cross times end style begin inline style 6 end style begin inline style cross times end style begin inline style 10 to the power of 23 end style begin inline style sum with bold partike l space below end style H subscript bold 2 O bold equals bold 12 bold cross times bold 10 to the power of bold 23 bold space bold molekul end style  space

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