Answer to Question #259745 in Chemistry for sam

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