passwella.
Menu

JAMB Chemistry 2001 Question 4

Question 4

Mole Concept and Stoichiometry

What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen? [H=1, O = 16]

  1. A.36.0g
  2. B.8.0g
  3. C.72.0g
  4. D.16.0g
Show the answer and explanation

Answer: C (72.0g)

Explanation

2H2 + O2 → 2H2O: 4 g of hydrogen gives 36 g of water, so 8 g gives 72 g.