JAMB - Chemistry (2001 - No. 2)
What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen?
[H = 1, O = 16]
[H = 1, O = 16]
36.0g
8.0g
72.0g
16.0g
Објашњење
\(2H_2 + O_2 → 2H_2O\)
4g → 36g
8g → X
X → \(\frac{ 36 \times8}{4}\)
= 72.0g
4g → 36g
8g → X
X → \(\frac{ 36 \times8}{4}\)
= 72.0g