1)
mCa=40u
mCaO=56u
2Ca + O2---->2CaO
80g Ca------112g CaO
8g Ca---------xg CaO
x = 11,2g CaO
2)
mS=32u mCu₂S=2*64u+1*32u=160u 2Cu +S-->Cu₂S xg S-----40g Cu₂S(dane z treści zad.) 32g S-----160gx = 8g S
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1)
mCa=40u
mCaO=56u
2Ca + O2---->2CaO
80g Ca------112g CaO
8g Ca---------xg CaO
x = 11,2g CaO
2)
mS=32u
mCu₂S=2*64u+1*32u=160u
2Cu +S-->Cu₂S
xg S-----40g Cu₂S(dane z treści zad.)
32g S-----160g
x = 8g S