mPb=207u
mC=12u
2PbO + C ---> 2Pb + CO₂
414g Pb ------ 12gC
20,7g Pb ------ xg C
x = 0,6g C
2 PbO + C --> 2 Pb + CO₂
mPb=20,7g
12 uC - 2·207 uPbmC - 20,7 gPb mC = 0,6 gC
Odp. : 0.6g węgla.
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mPb=207u
mC=12u
2PbO + C ---> 2Pb + CO₂
414g Pb ------ 12gC
20,7g Pb ------ xg C
x = 0,6g C
2 PbO + C --> 2 Pb + CO₂
mPb=20,7g
12 uC - 2·207 uPb
mC - 20,7 gPb
mC = 0,6 gC
Odp. : 0.6g węgla.