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- The molar conductivity of 0.010 M CH3COOH(aq) is 1.65 mS m2 mol-1. What is the acidity constant, Ka, of the acid?Calculate the masses of (i) Ca(NO3)2 and, separately, (ii) NaCl to add to a 0.150 mol kg−1 solution of KNO3(aq) containing 500 g of solvent to raise its ionic strength to 0.250.Calculate the masses of (i) KNO3 and, separately, (ii) Ba(NO3)2 to add to a 0.110 mol kg−1 solution of KNO (aq) containing 500 g of solvent to raise its ionic strength to 1.00.
- Calculate the masses of (i) KNO3 and, separately, (ii) Ba(NO3)2 to add to a 0.110 mol kg−1 solution of KNO3(aq) containing 500 g of solvent to raise its ionic strength to 1.00.Potassium acid phthalate, KHC8H4O4 ( MM=204.2 ), reacts with sodium hydroxide on a 1:1 molar basis. A sample of the acid weighing 0.4823 g was titrated with NaOH, requiring 24.35 mL to reach the endpoint. Calculate the molar concentration of the sodium hydroxide solution.How do I estimate the mean ionic activity coefficient of a 0.00125 mol/kg CuBr2 at 25°C and how do I tell if it is ideal or not?
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