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60 solutions

Weak Base Strong Acid Titrations

Q. Hydrochloric acid (0.0200 M) is used to titrate 50.0 ml of 0.0100M NH3. What is the pH at the equivalence point? (Kb for NH3= 1.8 x 10^-5)

Solved • Dec 17, 2019

Weak Base Strong Acid Titrations

Q. What is the pH of the solution which results from mixing 75 mL of 0.50 M NH3(aq) and 75 mL of 0.50 M HCl(aq) at 25 degrees Celsius? The Kb for NH3 is 1.8x10^-5.

Solved • Dec 10, 2019

Weak Base Strong Acid Titrations

Q. Calculate the hydronium ion concentration and the pH when 80.0 mL of 0.45 M NH3 is mixed with 80.0 mL of 0.45 M HCl (Ka = 5.6x10^-10).

Solved • Oct 22, 2019

Weak Base Strong Acid Titrations

Q. Calculate the pH after 0.015 mole of HCl is added to 1.00 L of each of the four solutions. (Assume that all solutions are at 25°C.) in 0.134 M sodium acetate (NaC2H3O2)

Solved • Nov 30, 2019

Weak Base Strong Acid Titrations

Q. Calculate the pH after 0.014 mole of HCl is added to 1.00 L of each of the four solutions. (Assume that all solutions are at 25°C.) in 0.147 M sodium pentanoate (NaC5H9O2)

Solved • Nov 26, 2019

Weak Base Strong Acid Titrations

Q. When 25 mL of 0.12 M aqueous ammonia is titrated with 0.12 M hydrobromic acid, what is the pH at the equivalence point? For ammonia, NH3, Kb = 1.8 x 10-5. Equivalence point pH = ------------?

Solved • Nov 14, 2019

Weak Base Strong Acid Titrations

Q. Consider a buffer solution that is 0.50 M in NH3 and 0.20 M in NH4Cl. For ammonia, pKb = 4.75. Calculate the pH of 1.0 L of the solution upon addition of 30.0 mL of 1.0 M HCl to the original buffer solution. Express your answer to two decimal places.

Solved • Nov 8, 2019