A person exhales up to 1300 g of CO2 per day. how much is it in moles and liters?

Given:
m (CO2) = 1300 g

To find:
n (CO2) -?
V (CO2) -?

Solution:
1) Using the periodic system of D.I.Mendeleev, calculate the molar mass of CO2:
M (CO2) = Mr (CO2) = Ar (C) * N (C) + Ar (O) * N (O) = 12 * 1 + 16 * 2 = 44 g / mol;
2) Calculate the amount of substance CO2:
n (CO2) = m (CO2) / M (CO2) = 1300/44 = 29.55 mol;
3) Calculate the volume of CO2 (under normal conditions):
V (CO2) = n (CO2) * Vm = 29.55 * 22.4 = 661.9 liters.

Answer: The amount of substance CO2 is 29.55 mol; volume – 661.9 liters.