Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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The pH at the equivalence point where 100.0 mL of 0.53 M NaHCO3 is titrated with 0.30 M NaOH solution is 11.77. Determine Ka for HCO3-.
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- Given: A certain weak acid,HA with a Ka value of 5.61 •10-6 is tutorage's with NaOH. part A: a solution is made by titration 7.00mmol of HA and 3.00 mmol of the strong base. What is the resulting pH? Part B: more strong base is added until the equivalence point is reached. What is the pH of this addition at the equivalence point if the total volume is 34mL?arrow_forwardWhat is the Ka of propionic acid if a buffer contains 0.150 M C3H6O2 and 0.100 M NaC3H5O2, and the pH is 4.71?arrow_forwardHh.129.arrow_forward
- What is the pH at the equivalence point when 65.0 mL of 0.30 M HCN is titrated with 0.25 M LiOH? Ka = 6.2 x 10-1⁰arrow_forwardWhat is the pH of a buffer solution made by mixing 50.0 ml of 0.100M potassium hydrogen phthalate with 13.6 ml of 0.100 M NaOH and diuting the miture to 100.0 ml, with water? The Kaz for hydrogen phthalate is 3.1 10-6. O 3.25 O 5.08 O 5.51 O 5.94arrow_forwardHCN is a weak acid with a Ka = 4.90 x 10-10. A 50.00 mL sample of this HCN solution (0.250 M) is titrated with 0.500 M NAOH. What is the pH at the equivalence point?arrow_forward
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