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QUESTION 3 What is the pH of a 0.3 M solution of sodium propionate, NaC3H502, at...
What is the pH of a 0.28 M solution of sodium propionate, NaC3H5O2, at 25°C? (propionic acid, HC3H502, is monoprotic and has a Ka = 1.3 x 10-5 at 25°C.. Kw = 1.01 x 10-14)
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 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
at 25°C ? (FO vohat is the pH of a 0.3 M Solution histls O₂ liom paper pro portales de HC 3 H 50₂, ka 1.8 x 10s at 256) a) 9.11 b) 5.44 c) 10.08 d) 8.45 e) 8.67
e) 8.67 1. IM in What is 0.3 M in 25°c ? acetic acid, HC2H302 3 the pH of a solution that sodium acetate.. Na C 2 H 3 Oz at Ka of acetic acid is 1.8 x 10-5 a) 5.23 b) 1.53 c) 4.74 d) 2.29 e) 6.08
QUESTION 14 What is the pH of a solution that is 0.1 Min acetic acid, HC2H302, and 0.3 Min sodium acetate, NaC2H302, at 25°C? Ko of acetic acid is 1.8 x 10-5 25.23 1.53 Oc 4.74 d. 2.29 6.08
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.
is this correct? Question 13 (0.5 points) Saved What is the pH of a 0.24 M solution of sodium propionate, NaC3H307, at 25°C? (For propionic acid, HC2H5O2, Ke = 1.3 * 10-9 at 25°C.) a) 11.10 Ob) 7.66 OC) 9.13 od) 6.34 Oe) 4.87
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...
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...