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Equilibrium constants at 25 ?C are listed in the table below. Substance Kc Value of Kc CaCO3 Ksp 4.5�10?9 H2CO3 Ka1 4.3�10?7 Ka2 5.6�10?11 What is the molar...

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Chemistry

Equilibrium constants at 25 ?C are listed in the tablebelow.

SubstanceKcValue of Kc
CaCO3Ksp4.5�10?9
H2CO3Ka14.3�10?7
Ka25.6�10?11

What is the molar solubility of marble (i.e., [Ca2+] in asaturated solution) in normal rainwater, for which pH=5.60?

Express your answer to two significant figures and include theappropriate units.

Answer & Explanation Solved by verified expert
3.9 Ratings (750 Votes)
Given that CaCO3 s Ca2 aq CO32 aq eq1 Ksp 45109 H2CO3 H2O l HCO3 aq H3O aq eq2 Ka1 47107 HCO3 aq H2O l CO32 aq H3O aq eq3 Ka2 561011 In    See Answer
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