After adding 10.0 mL of 0.10 M HCl to a 90.0 mL buffer solution of 0.60 M CH₃COOH and 0.40 M CH₃COONa at 25⁰C ? (Ka = 1.8 × 105) ?
1. how many moles of hcl are added?
2. how many moles acetic acid are present after the reaction?
3. how many moles of acetate ion are present after the reaction?
4. what is the concentration (in M) of acetic acid after the reaction
5. How many moles of NaOH are added?