Question

calculate the volume of oxygen needed to completely react with 150ml of carbon monoxide. assume al the volumes are measured at same temperatures and pressures.

Answer 1

2CO + O₂ = 2CO₂

According to the reaction, n (O₂) = 1/2 x n (CO).

n = V / 22.4

n (CO) = 0.15 / 22.4 = 0.007 mol

n (O₂) = 0.007 / 2 = 0.0035 mol

V (O₂) = 0.0035 x 22.4 = 0.078 L = 78 ml