Limitations of law of constant composition
Asked by jaswinderkaur28178 | 28th Aug, 2020, 10:59: PM
Limitations of law of constant composition-
This law is applicable in the case of isotopic elements. It is also not true if elements combine same ratio but produce different compounds.
Answered by Ravi | 29th Aug, 2020, 09:09: AM
- When lead sulphide, PbS and lead oxide, PbO, are heated together the products are lead metal and sulphur dioxide, SO2. PbS(s) + 2PbO(s) 3Pb (l) + SO2 (g). If 14.0 g of lead oxide reacts according to the above equation, how many (a) moles of lead (b) grams of lead, (c) atoms of lead and (d) grams of sulphur dioxide are formed? (Atomic mass : Pb = 207.0, S = 32.1 ; O =16.0)
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