1. Ionic strength of the solution (formula for calculation). (1 points)
2. Calculate the temperature coefficient of the reaction rate if, at 50 ° C, this
reaction ends in 13.5 minutes, and at 80 ° C in 30 seconds. (2 points)
3. Correlation between solubility coefficient and solubility product for PbCl₂.
(3 points)
4. Finish and balance the reaction
i) CuSO4 + BaCl₂ → .
ii) Cr(OH)3+KOH→
Write them in a molecular and net ionic forms. (4 points)
5.
Write the reactions of hydrolysis of NiCl₂ and Na₂CO3 in a net ionic form.
Indicate the reactions of the medium. (4 points)
6. Write the reactions of primary and secondary dissociation of K[Sb(OH)]
and the expression of the instability constant. (3 points)
7. Calculate the ionic strength of a 0.1 M solution of Fe(NO3)2. (3 points).