A) If a 2.5 L solution contains 0.141 moles of NaOH, what is the pH of the solution?
B) Calculate the percent ionization of a 0.44 M solution of acid with a pH of 3.81.
A) If a 2.5 L solution contains 0.141 moles of NaOH, what is the pH of...
10. What is the pH of a solution which contains 0.05 moles benzoic acid and 0.075 moles sodium benzoate dissolved to make 0.5000 L of solution? (Ignore Activities)
10. What is the pH of a solution which contains 0.05 moles benzoic acid and 0.075 moles sodium benzoate dissolved to make 0.5000 L of solution? (Ignore Activities)
A 1.0 L buffer solution contains 0.74 moles of ammonia 0.74 moles of ammonium chloride. Kb = 1.8 x 10—5 . Calculate the pH of this buffer after the addition of 0.10 moles of NaOH.
1a. Calculate the pH of a solution that contains 0.0282 g of NaOH in 1.50 L of water. Report your answer to TWO places past the decimal. 1b. Calculate the pH of a solution that contains 0.0261 g of Ba(OH)2 in 2.04 L of water. Report your answer to TWO places past the decimal.
A 1.0 L solution initially contains 0.3 M CH3COOH. Approximate the number of moles of CH3COOH and CH3COO− in the solution after 0.1 mol of solid NaOH is added, and calculate the pH of the resulting solution. Ka of CH3COOH is 1.8 ×10−5. 1) The number of moles of CH3COOH present is [ Select ] ["0.2", "0.3", "0.1"] mol. 2) The number of...
10. What is the pH of a solution which contains 0.05 moles benzoic acid and 0.075 moles sodium benzoate dissolved to make 0.5000 L of solution? (Ignore Activities)
A 1.0 L buffer solution contains .30 moles acetic acid and .10 moles lithium acetate. which of the following actions will destroy the buffer? A 1.0 L buffer solution contains 0.30 moles acetic acid (CH3CO2H) and 0.10 moles lithium acetate (CH,COLI). Which of the following actions will destroy the buffer? A. Addition of 0.10 moles of NaOH B. Addition of 0.10 moles of HCI
Question 4 2 pts If 11 drops of a formic acid (HCOOH) solution are titrated with 10 drops of a 0.12 M NaOH solution, what is the percent ionization of the formic acid solution? (Ka for formic acid 1.78 x 104) 4.0% 1.3% 1.9% @ 2.5% Question 5 2 pts What is the pH of an acetic acid solution if 25 drops are titrated with 44 drops of a 0.45 M KOH solution? (K, for acetic acid 1.8 x 105)...
What quantity (moles) of NaOH must be added to 1.0 L of 1.8 M HC2H3O2 to produce a solution buffered at pH = 4.00? Ka = 1.8×10-5
2. Consider the following two solutions: Solution A has a volume of 1 litre which contains 0.35 moles of acetic acid and 0.25 moles of sodium acetate. The Ka value for acetic acid 1.78 * 10". Solution B also has a volume of 1 litre and it contains 2.8 * 10* mol HCl and 2.84 * 10-4 mol of NaCl. a) Calculate the pH of each of the two solutions. b) What is the pH of each solution after thoroughly...