Given a solution of 0.125 M CH3COOH (aq) and a solution of 0.150 M NaCH3COO (aq),...

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Chemistry

Given a solution of 0.125 M CH₃COOH (aq) anda solution of 0.150 M NaCH₃COO (aq), how wouldyou prepare 100.0 mL of a buffer solution with a pH of 4.400?pK_a = 4.740 for CH₃COOH(aq).
Select one:
a. Mix 68.6 mL of the CH₃COOH (aq) with 31.4mL of the NaCH₃COO (aq)
b. Mix 27.6 mL of the CH₃COOH (aq) with 72.4mL of the NaCH₃COO (aq)
c. Mix 72.4 mL of the CH₃COOH (aq) with 27.6mL of the NaCH₃COO (aq)
d. Mix 50.0 mL of the CH₃COOH (aq) with 50.0mL of the NaCH₃COO (aq)
QUESTION 2
If 15.9 grams of NH₄Cl (s) are added to250.0 mL of 0.350 M NH₃ (aq) solution, what isthe resulting pH? Assume no change in volume upon adding theNH₄Cl (s). pK_a = 9.25 forNH₃ (aq).
Select one:
a. 8.55
b. 8.38
c. 9.06
d. 8.72

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Given a solution of 0125 M CH3COOH aq and a solution of 0150 M NaCH3COO aq how would you prepare 1000 mL of a buffer solution with a pH of 4400 pKa 4740 for CH3COOH aq Solution pH pka log baseacid 440 474 log baseacid 440 474 log baseacid 034 log baseacid Antilog 034 baseacid 0457 See Answer

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