What is the pH of a 0.28 M solution of sodium propionate, NaC3H5O2, at 25°C? (propionic...
2. What is the pH of a 0.36 M solution of sodium propionate, NaC3H302, at 25°C? (For propionic acid, HC2H502, Ka=1.3 10-5 at 25°C.) a. 9.22 b. 6.14 c. 4.78 d. 7.86 e. 11.10
QUESTION 3 What is the pH of a 0.3 M solution of sodium propionate, NaC3H502, at 25°C? (For propionic acid, HC3H502, Ko - 1.8 x 10-5 at 25°C) 02.9.11 1.5.44 c 10.08 0.8.45 . 8.67
A buffer solution contains 0.76 mol of propionic acid (HC3H5O2) and 0.65 mol of sodium propionate (NaC3H5O2) in 3.40 L. The Ka of propionic acid (HC3H5O2) is Ka = 1.3e-05. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.18 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the addition of 0.54 mol of HI? (assume...
What is the pH of a 1 L solution containing 0.5 mol of propionic acid and 0.4 mol of sodium propionate? Ka for propionic acid = 1.3 x 10-5. Select one: O a. 4.8 O b. -1.3 C. 1.3 O d. -5.0 e. 5.0 O O O
A buffer contains 0.19 mol of propionic acid (C2H5COOH) and 0.22 mol of sodium propionate (C2H5COONa) in 1.20 L. Ka = 1.3 x 10^-5 Part A What is the pH of this buffer? Part B What is the pH of the buffer after the addition of 0.02 mol of NaOH? Part C What is the pH of the buffer after the addition of 0.02 mol of HI?
Question 36 0/3 poir Calculate the pH of a 0.240 M solution of sodium propionate; NaOCH2CH3 ( Ka for propionic acid, HOCH2CH3, is 1.34 x 10-6) (Hint: This is the conjugate salt of a weak acid) Answer: 9.62
e concentration of propionic acid in the solution? The K, for propionic acid is 1.3 x 105 (for HCaHsO2 from Table 16.1. 16.65 What is the pH of a 0.0 25 M aqueous solution of sodium propionate, NaC3HsO2? What is 4 5
Calculate the mass of sodium propionate (NaC3H5O2 96.061g/mol) that needs to be added to 143.0g of propionic acid (HC3H5O2 74.079g/mol) to prepare 750.0mL of pH 5.20 buffer. Ka=1.3x10^-5
How do pH, propionic acid, and propionate change when HCl, a strong acid solution, with a final concentration of 0.0005 mole/L, is added to the solution containing 10-3 M sodium propionate? HCl is added from a concentrated stock solution, so the volume change is negligible.
Calculate the pH of the following solutions 1. A solution that is 6.0×10−2 M in potassium propionate (C2H5COOK or KC3H5O2 ) and 8.5×10−2 M in propionic acid (C2H5COOH or HC3H5O2 ). The Ka of propionic acid is 1.3×10-5. 2. A solution that is 8.0×10−2 M in trimethylamine, (CH3)3N, and 0.12 M in trimethylammonium chloride, (CH3)3NHCl. The Kb of trimethylamine is 6.4×10-5. 3. A solution that is made by mixing 50.0 mL of 0.16 M acetic acid and 50.0 mL of...