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If I had 120g of 2Ca would the Mr of the 2Ca be 40 or 80?
Thanks for any help :)
you have two Ca, so 2*Mr for Ca so 2*40 =80
The weight of Ca is irrelevant in this question.
Thanks edward :)
Would you be able to answer this question for me, don't worry if you don't want to;
Calculate the maximum mass of calcium oxide that may be formed from 120g of calcium metal for the following reaction: 2Ca+O2-->2CaO
look at the stoichemetrics of the equation 2moles goes to 2 moles
using moles = mass/mr
you know this number of moles of Ca = Ca0
rearrange n=g/mr to get g=mr*n
56*3 =168 grams
ithinks this is right
That's what i got
Thanks so much for answering this :P