# chemistry

What is th pH of a buffer solution made by dissolving 0.10 mol of formic acid, HCOOH, and 0.10 mol of sodium formate, HCOONa, in 1L of water?

What is the molarity of a solution made by dissolving 3.4g of Ba(OH)2 in enough water to make 450mL of solution? Assume that Ba(OH)2 ionizes completely in water to Ba2+ and OH- ions. What is the pH of the solution?

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1. Use the Henderson-Hasselbalch equation for #1. For #2, you are to consider Ba(OH)2 a strong base. Post your work if you get stuck.

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