Question

can you answer 3&4 and tell why you chose each response?

TolS rom ideality ultiplying the concentration of a solution by the ionic st concentration term in chemical calculations. con (b) is obtained by (c) directly repy multiplying the concentration of a solution with its chorge. (d) is obtained by multiplying the co ncentration of a solution with its ch 3. Which of the following is incorrect? uffer pH depends on both ionic strength and temperature In choosing a buffer, seek one whose pKa is t 2 of the desired pH. Henderson-Hasselbalch equation for a weak acid HA is pH-pka + legg вив ) d. A buffered solution resists changes in pH when acids or bases are addey or when dilution occurs. 4. Which of the following is incorrect? (a The greater the ionic strength of a solution, the higher the charge in the ionic atmosphere. Each ion-plus-atmosphere contains less net charge and there is less attraction between any particular cation and anion. The solubility of CaSO4 (s) in a aqueous solution is increased when KN0s is in the solution. There is on effect ofionic strength on solubility of salts. b. c. d.

Answer 1

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