What is the number of moles of CO2 in a 220.-gram sample of CO2 (gram-formula mass = 44 g/mol)?
1. 0.20 mol
2. 5.0 mol
3. 15 mol
4. 44 mol

the answer is 5.0moles of CO2

Explanation:

if you have done conversion of moles to grams and vice versa

then this might be easy but this should help:

so if you have grams you just divide the given mass by the formula mass.

ie 220g CO2/44 g/mol= 5.0moles

ps i hope this helps

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pleaze mark brainliest!

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