Question

How many pounds of CO2 are in 8.65 x 10^20 molecules of CO2

Answer 1

First, we must know: 1 pound = 1 lb = 453.592 g

1 mole CO2 = 44.0 g = 6.02x10^23 molecules CO2

44.0 g CO2 ------- 6.02x10^23 molecules CO2

X ------- 8.65 x 10^20 molecules of CO2

X = 0.0632 g CO2

Now, we need pounds, not g ===> 0.0632 g CO2 x (1 pound/453.592 g) = 1.39x10^-4 pounds.

Answer: 1.39x10^-4 pounds