Report Sheet 2. by pH meter pH of solutions 0.1 M HCI 0.1 M acetic acid 0.1 M so
ID: 887021 • Letter: R
Question
Report Sheet 2. by pH meter pH of solutions 0.1 M HCI 0.1 M acetic acid 0.1 M sodium acetate 0.1 M carbonic acid 1. by pH paper not done S.2t ale 0.1 M sodium bicarbonate 0.1 M ammonia 0.1 M NaOH not done Buffer system a 3. 5 mL 0.1 M CH,COOH+ 5 mL 0.1 M CHsCOO Na* 4. after addition of 0.5 mL 0.1 M HCI 5. after addition of 0.5 mL 0.1 M NaOH pH Buffer system b 6. 1 mL 0.1 M CH COOH+ 10 mL 0.1 M CH3COO Na 7. after addition of 0.5 mL 0.1 M HCI 8. after addition of 0.5 mL 0.1 M NaOH IS 47 Buffer system c 9. 5 mL 0.1 M H2CO3 +5 mL 0.1 M NaHCO3 10. after addition of 0.5 mL 0.1 M HCI 11. after addition of 0.5 mL 0.1 M NaOH 10. afer addition of 0.5 mL 0.1 M HCIExplanation / Answer
There are multiple questions here. . i am allowed to answer only 1 at a time but I will answer question 1st 3 for you. for you.Please ask other as different question.
1.pH meter
2. Distilled water can't be used as buffer as tomake buffer an acid (or base) and salt of acid (or salt of base isrequired).
3. See the change in pH after adding acid/bass with the pH when acid/base is not added for each of buffer a,b,c and d. Lesser the change in pH,more effective the buffer is. From your data d is best and a is very close. b and c are less effective.