Respuesta :

thehuylui
First, calculate one mole of CO2. Go to the periodic table, and we see that the atomic mass of Carbon is 12 and Oxygen is 16. Atomic mass is also the grams of 1 mole.
So, 1 mole of Carbon is 12 grams, and 1 mole of Oxygen is 16 grams. We have 2 oxygen here, so one mole of O2 is 32 grams, add that to carbon and we get 44 grams in a mole of CO2. 
Take 132 and divide that by 44 and we get 3. SO there are 3 moles of CO2.
Now for the Volume:
At standard temperature and pressure, ideal gasses will fill 22.4 liters for one mole. So, 3 moles of CO2 fill out 65.2 liters.
Convert liters to dm3, and we get 65.2 dm3 

onyebuchinnaji

The number of moles of 132 g of CO₂ is 3 moles

The volume of the given amount of the gas 67.2 dm³

The given parameters;

  • given mass of CO₂ = 132 g

The molar mass of CO₂ is calculated as;

molar mass = (12) + (16 x 2) = 44 g/mol

The number of moles of 132 g of CO₂ is calculated as;

[tex]mole = \frac{132}{44}= 3 \ moles[/tex]

The volume of the given amount of the gas;

1 mole = 22.4 dm³

3 mole = ?

= 3 x 22.4 dm³

= 67.2 dm³

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