(b) Calculate the number of moles in 22 grams of carbon dioxide.
Question
(b) Calculate the number of moles in 22 grams of carbon dioxide.
Solution
To calculate the number of moles in 22 grams of carbon dioxide (CO2), you need to know the molar mass of CO2.
Step 1: Calculate the molar mass of CO2. The molar mass of carbon (C) is approximately 12.01 grams per mole and the molar mass of oxygen (O) is approximately 16.00 grams per mole. Since CO2 has one carbon atom and two oxygen atoms, its molar mass is (12.01 g/mol) + 2*(16.00 g/mol) = 44.01 g/mol.
Step 2: Use the formula for calculating moles, which is mass (in grams) divided by molar mass (in grams per mole).
So, the number of moles in 22 grams of CO2 is 22 g / 44.01 g/mol = 0.5 moles.
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