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Unformatted text preview: b. What ratio of acid [HA] to conjugate base [A-] would you use to prepare the pH 5 solution using the system you chose in part (a)? 6. The K sp for Ca 3 (PO 4 ) 2 is 2.0x10-20 and the K sp for CaSO 4 is 2.00x10-4 . Write the K sp expression for each compound. 7. Solid silver chromate (Ag 2 CrO 4 ) was added to pure water. After the solution was stirred for several days to ensure a state of equilibrium, analysis of the solution showed that its silver ion concentration was 1.3x10-3 M. Calculate the K sp for Ag 2 CrO 4 . 8. The K sp for Mg(OH) 2 is 1.8x10-11 . a. Calculate the [Mg 2+ ] and [OH-] in a saturated solution of magnesium hydroxide solution. b. Calculate the pH of the magnesium hydroxide solution. 9. Which of the following substances will be more soluble in acidic solution than in basic solution? Ni(OH) 2 CaCO 3 AgF AgCl...
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- Spring '08
- pH, magnesium Hydroxide Solution