You are missing what a mole is. Take a look at the example problems here..
http://dbhs.wvusd.k12.ca.us/webdocs/Mole/Moles-to-Grams.html
1. how many grams are in 5.66 mol of CaC03 (3 is the subscript)?
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mass= 5.66 mol CaCO3 x mass/1 mol CaCO3
How do i finish this off?
2. find the number of moles in 508g of ethanol (C2H6O)? 2 and 6 are subscripts
1 answer
2 answers