Lead nitrate decomposes on heating as shown in the equation below.
Pb (NO3)2 heat → 2PbO(S) + 4N02(S) + O2(g)
112dm3 of oxygen gas were collected at STP when a sample of lead nitrate was completely decomposed by heating. Calculate;
a. The mass of the lead nitrate sample.
b. The mass of lead (II) oxide produced.
c. The volume of nitrogen dioxide gas produced at STP.
(Pb = 207, Na =14, 0 = 16; molar volume of a gas at STP = 22.4 dm3)
A. To find mass of Pb(NO3)2 from mole equivalent
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