5. Suppose you add 2.0 mL of 0.10 M HCl to 100 ml of buffer having 0.10 M HA and 0.20 M NaA.
a. Which species will react strongly with one another? (1 point)
b. What will be the change in pH? pKa = 4.82 (2 points)
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5. Suppose you add 2.0 mL of 0.10 M HCl to 100 ml of buffer having...
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A buffer solution is prepared by mixing the following solutions: SHOW WORK 50. mL of 2.0 M weak acid (HA) solution and 50. mL of 2.0 M conjugate base solution (NaA) solution. The Ka for HA is 2.27 x 10-11. 41. What is the pH of the resulting solution after adding 100 ml of 1.0 M HCl to the original buffer solution? 11.12 b) 10.64 c) 12.32 d) 0.48 e) 5.32
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1) Using a 0.25 M phosphate buffer with a pH of 7.2, you add 0.79 mL of 0.48 M HCl to 54 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant figures.) 2) Using a 0.25 M phosphate buffer with a pH of 7.2, you add 0.79 mL of 0.48 M NaOH to 54 mL of the buffer. What is the new pH of the solution? (Enter your answer to three...
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Using a 0.20 M phosphate buffer with a pH of 6.2, you add 0.77 mL of 0.45 M HCl to 48 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant figures.) Using a 0.20 M phosphate buffer with a pH of 6.2, you add 0.77 mL of 0.45 M NaOH to 48 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant figures.)
Using a 0.20 M phosphate buffer with a pH of 6.4, you add 0.71 mL of 0.54 M HCl to 55 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant figures.) 49 Using a 0.20 M phosphate buffer with a pH of 6.4, you add 0.71 mL of 0.54 M NaOH to 55 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant...
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