loL of naot Data Sheet solution number volume of 0.10M NaCl used, ml volume of o

Question

loL of naot Data Sheet solution number volume of 0.10M NaCl used, ml volume of o, Jont KCI used, ml INaCI] Z./g KilT 100nl temperature of filtered KHT solution, "C molarity of standardized NaOH solution, mol L- rm volume of saturated KHT solution titrated, ml. NaOH solution final buret reading, mL initial buret reading, ml volume of NaOH needed, mL number of moles of NaOH needed, mol number of moles of HT titrated, mol 7 4 solubility of KHT, mol L- IK lnitial K lfrom dissolved KIT [K Isat sorm Kup average Kap average solubility of KHT, mol L- average solubility, grams per 100 mL 2

Explanation / Answer

[K+] initial = 2.1 g KHT/188.177 g/mol x 0.04 L = 0.28 M

[K+] from dissolved KHT = 0.28 - 1.88 x 10^-12 M = 0.28 M

[K+]sat. soln. = 1.88 x 10^-12 M

Ksp = (1.88 x 10^-12)^2 = 3.53 x 10^-24

Solubility of KHT in g/L = 1.88 x 10^-12 x 188.177 = 3.54 x 10^-10 g/L

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