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Question
The most common white pigment until the 1880s was lead white, sometimes called basic lead carbonate: (PbCO3)2Pb(OH)2. Paintings containing lead white turned black in the presence of moist H2S from natural sources and polluted air due to the formation of PbS. The PbCO3 portion of this reaction is shown below.
PbCO3(s) + H2S(aq) -> PbS(s) + H2CO3(aq)
If 
H = -60.9 kJ/mol and S = 26.6 J/K, what are Ssurr and Stotal for this reaction at 25C??
Answer
This answer is hidden. It contains 13 characters.
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