- Part B Salts Question 1 0 25 Points After You Have Completed Step 7 In Part B Use Your Experimental Observation Of 1 (31.71 KiB) Viewed 84 times
- Part B Salts Question 1 0 25 Points After You Have Completed Step 7 In Part B Use Your Experimental Observation Of 2 (28.43 KiB) Viewed 84 times
- Part B Salts Question 1 0 25 Points After You Have Completed Step 7 In Part B Use Your Experimental Observation Of 3 (28.48 KiB) Viewed 84 times
- Part B Salts Question 1 0 25 Points After You Have Completed Step 7 In Part B Use Your Experimental Observation Of 4 (11 KiB) Viewed 84 times
- Part B Salts Question 1 0 25 Points After You Have Completed Step 7 In Part B Use Your Experimental Observation Of 5 (32.68 KiB) Viewed 84 times
- Part B Salts Question 1 0 25 Points After You Have Completed Step 7 In Part B Use Your Experimental Observation Of 6 (38.6 KiB) Viewed 84 times
- Part B Salts Question 1 0 25 Points After You Have Completed Step 7 In Part B Use Your Experimental Observation Of 7 (36.02 KiB) Viewed 84 times
- Part B Salts Question 1 0 25 Points After You Have Completed Step 7 In Part B Use Your Experimental Observation Of 8 (8.81 KiB) Viewed 84 times
Question 2 (0.25 points) Based on your results, the NaCl solution is O acidic. basic. neutral. Question 3 (0.25 points) After you have completed Step 7 (in Part B), use your experimental observation of the contents of well A2 along with the Universal Color guide from your lab kit (shown below as a reminder) to determine the pH of your NaH2PO4 solution. (Choose the pH that most closely matches your observation). Os 07 9
Question 4 (0.25 points) Based on your results, the NaH2PO4 solution is acidic. basic. neutral. Question 5 (0.25 points) After you have completed Step 7 (in Part B), use your experimental observation of the contents of well A3 along with the Universal Color guide from your lab kit (shown below as a reminder) to determine the pH of your Na2HPO4 solution. (Choose the pH that most closely matches your observation). 5 07 09
Question 6 (0.25 points) Based on your results, the Na2HPO4 solution is acidic. basic. neutral.
Parts C, D and E: Buffers Question 7 (0.5 points) Using your experimental results for Well 1 and Well 2 in Row B (NaH₂PO4(aq) + Na₂HPO4(aq)): When you added HCI, did the pH change? Yes, the color and therefore pH changed by quite a bit No, the color and the pH stayed close to the original Question 8 (0.5 points) Using your experimental results for Well 1 and Well 3 in Row B (NaH₂PO4(aq) + Na₂HPO4(aq)): When you added NaOH, did the pH change? Yes, the color and therefore pH changed by quite a bit No, the color and the pH stayed close to the original
Question 9 (0.5 points) ✓ Saved Is the NaH₂PO4 + Na2HPO4 mixture a buffer? yes O no Question 10 (0.5 points) Using your experimental results for Well 1 and Well 2 in Row C (water): When you added HCI, to water, did the pH change? Yes, the color and therefore pH changed by quite a bit No, the color and the pH stayed close to the original Question 11 (0.5 points) Using your experimental results for Well 1 and Well 3 in Row D (water): When you added NaOH to water, did the pH change? Yes, the color and therefore pH changed by quite a bit O No, the color and the pH stayed close to the original
Question 12 (0.5 points)✓ Saved Is water (H₂O) a buffer? O yes no Question 13 (0.5 points)✔ Saved Using your experimental results for Well 1 and Well 2 in Row D (NaCl(aq)): When you added HCI to NaCl(aq). did the pH change? Yes, the color and therefore pH changed by quite a bit No, the color and the pH stayed close to the original Question 14 (0.5 points) Using your experimental results for Well 1 and Well 3 in Row D (NaCl(aq)): When you added NaOH to NaCl(aq), did the pH change? Yes, the color and therefore pH changed by quite a bit O No, the color and the pH stayed close to the original
Question 15 (0.5 points) ✓ Saved Is the NaCl(aq) solution a buffer? yes O no