Oblicz, w jakiej ilości bromku wapnia CaBr2 znajduje się 80g wapnia.
Daje naj ;3
mCaBr2=200u mCa=40u 200g CaBr2------40g Ca xg CaBr2---------80g Ca x=400g CaBr2
mCaBr₂=40g+2*80g=200g
40g Ca ------------ 200g CaBr₂
80g Ca ------------ xg CaBr₂
xg=80g*200g/40g
xg=400g
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mCaBr2=200u
mCa=40u
200g CaBr2------40g Ca
xg CaBr2---------80g Ca
x=400g CaBr2
mCaBr₂=40g+2*80g=200g
40g Ca ------------ 200g CaBr₂
80g Ca ------------ xg CaBr₂
xg=80g*200g/40g
xg=400g