Biochemistry Given a 0.1M solution of a monoprotic acid with a pK_a of 4.75, write the...
Write me Heoderson-Hasselbalch equation for a propanoic acid soiubon (CH_3CH_2CO_2H. pK_a = 4 874) using the symbols HA and A^-. and the given pK_a value for propanoic acid in the expression. Using the equation above, calculate the quotient [A^-1]/[HA] at pH 4.550 pH 5.407.
35.25 mL of NaOH solution are required to titrate 0.5745 g of an unknown monoprotic acid. Prior standardization of the NaOH determined its concentration as 0.1039 M. 1. Use the data provided to determine the molar mass of the unknown acid 2. If 20 mL of a 1.0 M solution of the unknown monoprotic acid is placed into a beaker and 10 mL of 0.1 M NaOH is added, the pH of the final solution is 1.9. What is the...
(C))3.75 moo (D) 4.75 (E) 5.75 bios nA oir 9. Ka of acetic acid is 1.8 x 10. What is the pH of a solution 0.1M acetic acid and 0.05M sodium acetate? (A) 4.44 oasd A (B) 4.74 (C) 4.96 (D) 5.04 (E) 5.56 10. A buffer solution containing 0.5M acetic acid and 0.5M sodium acetate hais a pH ot 4.745. 5ml 2M sodium hydroxide is added to 995ml of the buffer solution. What is final pH? (A) 4.569 (C))3.75...
4. A weak acid was titrated with 0.1M NaOH, and the titration curve is shown, 14 12 10 pH of solution 0.600... 4 2 0 2 6 10 12 14 16 18 mL of Base added a. Is this a monoprotic or diprotic acid? b. Estimate the values of the pka(s) for this acid.
3) Hypobromous acid (HOBr) is a weak monoprotic acid, with K. = 2.1 x 10 a) What is the value for pH for a 0.0168 M aqueous solution of hypobromous acid? (12 points] b) 0.0100 moles of NaOH, a strong soluble base, is added to 1.000 L of the above solution of hypobromous acid. What will be the pH for this new solution? [15 points]
3) Hypoiodous acid (HOI) is a weak monoprotic acid, with Ka = 2.3 x 10-". a) What is the value for pH for a 0.0424 M aqueous solution of hypoiodous acid? [12 points) b) 0.0100 moles of NaOH, a strong soluble base, is added to 1.000 L of the above solution of hypoiodous acid. What will be the pH for this new solution? [15 points)
In the titration of a solution of weak monoprotic acid with a 0.1275 M solution of NaOH, the pH half way to the equivalence point was 4.48. In the titration of a second solution of the same acid, exactly twice as much of a 0.1275 M solution of NaOH was needed to reach the equivalence point. What was the pH half way to the equivalence point in this titration? In the titration of a solution of weak monoprotic acid with...
3) Hypobromous acid (HOB) is a weak monoprotic acid, with K.-2.1 x 10%. a) What is the value for pH for a 0.0168 M aqueous solution of hypotromous acid? [12 points] b) 0.0100 moles of NaOH, a strong soluble base, is added to 1.000 L of the above solution of hypobromous acid. What will be the pH for this new solution? [15 points) 10
urgent 3) Hypobromous acid (HOBr) is a weak monoprotic acid, with K. = 2.1 x 10° a) What is the value for pH for a 0.0168 M aqueous solution of hypobromous acid? [12 points) b) 0.0100 moles of NaOH, a strong soluble base, is added to 1.000 L of the above solution of hypobromous acid. What will be the pH for this new solution? [15 points)
3) Hypochlorous acid (HOCI) is a weak monoprotic acid, with K. = 3.0 x 10-8 a) What is the value for pH for a 0.0264 M aqueous solution of hypochlorous acid? [12 points] b) 0.0100 moles of NaOH, a strong soluble base, is added to 1.000 L of the above solution of hypochlorous acid. What will be the pH for this new solution? [15 points)