1) 50.00mL of 0.10 M HNO2 nitrous acid was titrated with 0.10 M KOH solution. After 25.00mL of KOH solution was added, explain what was the pH in the titration flask? (Givenka = 4.5 x 10-4.
2) The molar solubility of tin iodide (Snl2) is1.28 x 10-2 mol/L. What is Ksp = 6.6 x10-11. Explain what is molar solubility of CrF3?
3) The Ksp for Ag3PO4 is 1.8x 10-18. Find out the Ag+ ion concentration in a saturated solution of Ag3PO4.