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Can anyone answer this please;
Calculate the mass of magnesium needed to make 25g of magnesium oxide
Is enough information given to be able to work out the question?
Mg + O ---> MgO
1: Moles of MgO = Mass/RMM = 25/30 = 0.8333
2: It is a 1:1 ratio so the moles of MgO = the moles of Mg
3: Mass of Mg = moles x RMM = 0.8333 x 24 = 20g
Hope this helps!
Thankyou so much :)
What is RMM is it the same as RFM?
RMM is the relative molecular mass. not sure what RFM is though.
RFM is relative formula mass :/ I kinda get the method you did ^
Cool - Im glad I was able to help!!