# Calculate the number of things, volume, number of coal molecules. gas if its mass = 4.4 g

October 9, 2021 | education

| 1. Let’s calculate the chemical amount of carbon dioxide:

n (CO2) = m (CO2): M (CO2);

M (CO2) = 12 + 2 * 16 = 44 g / mol;

n (CO2) = 4.4: 44 = 0.1 mol;

2. find the volume of gas:

V (CO2) = n (CO2) * Vm = 0.1 * 22.4 = 2.24 l;

3.Calculate the number of CO2 molecules:

N (CO2) = n (CO2) * Na = 0.1 * 6.02 * 10 ^ 23 = 6.02 * 10 ^ 22 molecules.

Answer: 0.1 mol, 2.24 L, 6.02 * 10 ^ 22 molecules.

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