READ ME: State and verify any assumptions you make. You MUST write out all relevant reactions and equilibria that you us

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Read Me State And Verify Any Assumptions You Make You Must Write Out All Relevant Reactions And Equilibria That You Us 1 (138.2 KiB) Viewed 26 times

READ ME: State and verify any assumptions you make. You MUST write out all relevant reactions and equilibria that you use for each problem! Each problem is worth 10 points, the final score will be normalized to 30 points. Give pH to two decimal places. Determine the pH of a 0.150 M acetic acid solution. The ka of acetic acid is 1.8x10-5. Dimethylamine, (CH3)2NH is a weak base with kb-5.9x10-4. Determine the pH of a 0.0800 M solution of dimethylamine. Determine the pH of a 0.246 M solution of sodium fluoride. The ka of HF is 3.5×10-4. What is the pH of a buffer that has 0.325 M NaC₂H3O2 and 0.300 M acetic acid? Determine the pH after 15.0 mL of 2.50 M NaOH is added to 200. mL of a buffer that is 0.236 M NH3 and 0.546 M NH4NO3 1. 2. 3. 4. 5. 6. Determine the pH when 250.mL of 0.150 M HCI is mixed with 120. mL of 0.200 M NH3. Acid Dissociation Constants Acid Acetic acid Hydrofluoric acid Formula HC₂H3O2 HF Base Dissociation Constants Base Ammonia Dimethylamine Formula NH3 (CH3)2NH ka 1.8x10-5 3.5x104 kb 1.8x10-5 5.9x10-4