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2. (4) Given: PbSO4(e)Pb2 (aq) + SO42 (aq) Calculate the equilibrium constant, if AGt for PbSO4(s) is-811 Kj/mole; for Pb2+ (
1. (6) From this weeks experiment, what would you expect the signs on ΔΗΡ and So for the observed reaction, Na2B O(OH)8 H2ohelp
2. (4) Given: PbSO4(e)Pb2 (aq) + SO42 (aq) Calculate the equilibrium constant, if AGt for PbSO4(s) is-811 Kj/mole; for Pb2+ (aq) is 24.3 Kj/mole and for SO42 (ag) is -742 Kj/mole. Calculate the solubility of PbSO4, if the pH of the solution is 4.32 and the [NaHSO4] is 0.10 M. Ka for HSO4 1.02 x 10-2
1. (6) From this week's experiment, what would you expect the signs on ΔΗΡ and So for the observed reaction, Na2B O(OH)8 H2o (s)2 Na (aq)+ BaOs(OH)2 (aq) + 8 H2O (0 to be Explain your answer. Hermilo used aliquots Of 8.0 mL of the saturated Borax solution at 50°C required 33.0 mL to titrate the sample using HCl, at 40°C required 22.4 mL of the HCl; at 30C, required 12.5 mL; at 20°C required 9.40 mL: and at 10.0 C, required 5.80 mL of the HCl. The molarity of the HCl is 0.316 M. Determine the Ksp of Borax at 40 and 10°C. The titration reactie is: B4Os(OH)2 (aq) 2 H3O (aq) + H2O ()4 HaBOs (aq) What will you plot and how will you determine AHo and AS?
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