5. Which of the following changes would cause a smaller break at the precipitation titration curve? A. Increasing the temperature; B. Increasing Ksp value; C. Decreasing Ksp value; D. Decreasing the temperature; E. Increasing of the concentrations

1. Which one of the following substances, when added to a saturated solution of AgI, will decrease the solubility of AgI in solution? a) KCI b) HBr c) Nal d) HNO,

You are given a solution of 0.20M CoCl3, 0.15M SnCl2, 0.35M CuCl2, and 0.25M AgCl.Giventhe following table, calculatethe hydroxide concentration needed to precipitate each metal individually so they can be recovered. You do not want more than one metal to precipitate at one time or when you filter the precipitate you will get a mixture.(Optional; calculate the volume of a 0.25M NaOH solution needed to cause this precipitation) b.) Hydroxide needed to precipitate Sn(OH)2 c.) Hydroxide needed to precipitate Cu(OH)2 d.) Hydroxide needed to precipitate AgOH

12. How much H;PO4 and NaOH are needed to prepare a buffer containing 0.40 mole HPO2- and 0.50 mol PO,³?

A 26.8 mL sample of 0.345 M triethylamine, (C,H;);N, is titrated with 0.217 M perchloric acid. At the equivalence point, the pH is