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Question: A 0.10 M solution of lactic acid, a monoprotic acid of formula HC3H5O3, was found to have a pH of 2.43. What is the value of Ka for the acid and the percent ionization?
A 0.4512 g sample of a primary-standard-grade Na2CO3 required 36.44 ml of a H2SO4 solution to reach the end point of the reaction.
Aqueous potassium iodide reacts with aqueous copper(II) nitrate to form a mixture of solid copper(I) iodide, solid iodine, and aqueous potassium nitrate.
Calculate the percent ionization of 8.0×10?3 M butanoic acid in a solution containing 8.0×10?2 M sodium butanoate
In going from room temperature (25.0 °C) to 10 °C above room temperature, the rate of a reaction doubles. Calculate the activation energy for the reaction.
formic acid hfor has a ka equal to about 1.8x10-4. a student is asked to prepare a buffer having a ph of 3.4 from a
Assume that fructose is a molecular solid and does not ionize when it dissolves in water.
At 29 C the average rate is 3.3 flashes every 10 seconds;at 23 C the average rate falls to 2.7 flashes every 10 seconds. Calculate the activation energy for flashing process.
The Kb of methylamine, CH3NH2, is 4.2 x 10-4. Calculate the pH of a solution of 0.431 M methylamine.
The reaction of t-butyl bromide (CH3)3CBr with water to make t-butyl alcohol (CH3)3COH proceeds according to the following steps: write the rate law for the reaction
What is the specific activity in (Ci g-1) of the nuclide Br (mass 90, atomic number35), whose half life is 1.6 seconds
How many grams of are CaH2 needed to generate 147L of H2 gas if the pressure of H2 is 827 torr at 20 C?
The freezing point of benzene is 5.5oC. What is the freezing point depression of a solution of 5.00 g naphthalene (C10H8) in 444 g benzene (Kf of benzene = 4.90oC/m)?
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