2
Question Question 2
Hydrogen and oxygen combine in a ratio of 1:8 by mass to form water. What mass of oxygen gas would be required to react completely with 3 g of hydrogen gas?
Given,
hydrogen : water = 1 : 8
So, for every 1 g of hydrogen, 8 g of oxygen is required
∴ For 3 g of hydrogen, oxygen required is x 3 = 24 g
Hence, 24 g of oxygen would be required for the complete reaction with 3 g of hydrogen gas.