4. Below is a titration curve for the titration of 50.0 mL of a 0.100 M solution of the weak acid A with a 0.100 M solution of NaOH. 14 12 10 8 pl N

  1. Which is more soluble in a basic solution than in pure water? A. Mg(OH)2 B. CaHPO4 C. NaCl D. CaCO3 E. AgI

2 Which will precipitate first when AgNO3 is added to a solution containing equal concentrations of Br- , Cl-, and I- ions? A. AgBr B. AgCl C. AgI D. AgNO3 E. No precipitate will form

3.Which one of the following is the best representation of the titration curve which will be obtained in the titration of a weak diprotic acid H2A (0.10 M) with a strong base of the same concentration?


4. Below is a titration curve for the titration of 50.0 mL of a 0.100 M solution of the weak acidA with a 0.100 M solution of NaOH.1412108plN255075100Volume of NaOH (mL)That is the approximate pka of HA?A. 4B. 6C. 8D. 9E. 12

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