There are 0.511 moles of CO 2 in 22.5 gm of the substance
Determine the number of moles of carbon dioxide, we need to use the molecular weight of CO₂ and the given mass of 22.5 g.
The molecular weight of CO₂ is:
c = 12.01 gm/mol
o = 16.00 gm/mol
2 x o = 2 x 16.00 gm/mol = 32.00 gm/mol
So, the molecular weight of CO₂ is 12.01 gm/mol + 32.00 gm/mol = 44.01 gm/mol.
Now, we can use the formula:
no of moles = Given mass / Molar mass
where n is the number of moles, m is the given mass, and M is the molecular weight.
Plugging in the values, we get:
n = 22.5 g / 44.01 g/mol
n = 0.511 moles"
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