WAEC - Chemistry (2024 - No. 26)
Ethane of volume 400 cm\(^3\) was completely burnt in excess oxygen according to the following equation:
2C\(_2\)H\(_6\)\(_(g)\) + 7O\(_2\)\(_(g)\) → 6H\(_2\)O\(_(g)\) + 4CO\(_2\)\(_(g)\)
Calculate the volume of steam that would be produced.
200 cm\(^3\)
400 cm\(^3\)
600 cm\(^3\)
1200 cm\(^3\)
Explicació
2C\(_2\)H\(_6\)\(_(g)\) + 7O\(_2\)\(_(g)\) → 6H\(_2\)O\(_(g)\) + 4CO\(_2\)\(_(g)\)
2 moles 6 moles
400cm\(^3\) X cm\(^3\)
X = \(\frac{{400}\times{6}}{2}\)
X = 1200cm\(^3\)