Monday, November 16, 2009

How many Moles produced from 13.5g of O2?

so im doing this chem problem. and i looked thru my notes and the book but none of the examples have shown me how to go from moles to grams. i dont even know if thats what your supposed to do but heres the question.





how many moles of CaO will be produced from 13.5g of O2





i think you have to figure out how many moles of o2 are in 13.5 g of o2 and then how many CaO are produced from one mole of o2 but i dont know if im getting the right numbers because i dont know what you do with the grams. ughh help please!

How many Moles produced from 13.5g of O2?
13.5 g of O2 is how many moles of O2. (Hint: 1 mole of O2 has a mass of 32 g)





Since there are 2 oxygen atoms in a molecule of O2, and 1 oxygen atom in a mole of CaO, you can get 2 moles of CaO for every mole of O2 (which you just calculated).

dendrobium

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