What is the pH of a solution of 0.400 M CH₃NH₂ containing 0.300 M CH₃NH₃I? (Kb of CH₃NH₂ is 4.4 × 10⁻⁴)

Phenol, C6H5OH, is a weak organic acid. Suppose 0.515 g of the compound is dissolved in enough water to make 125 mL of solution. The resulting solution is titrated with 0.123 M NaOH. C6H5OH(aq) + OH(aq) C6H5O(aq) + H2O() (a) What is the pH of the original solution of phenol? (b) What are the concentrations of all of the following ions at the equivalence point: Na+, H3O+, OH, and C6H5O? (c) What is the pH of the solution at the equivalence point?

Acrylic acid is used in the polymer industry in the production of acrylates. Its K, is 5.6 X 10“’. What is the pH of a 0.11 M solution of acrylic acid, CH2CHCOOH?

14) Calculate the following for the given aqueous solutions at 25.0 oC: ​a) The Molarity of a Ba(OH)2 solution whose pH = 13.85 ​b) The pH of a 5.48 x 10–8 M Ca(OH)2 solution. ​c) The [OH–] concentration of a Sr(OH)2 solution whose pH is 14.65. ​d) The pH of a 12.0 M HCl solution.

Red cabbage juice is a sensitive acid-base indicator; its colors range from red at acidic pH to yellow in alkaline solutions. If red cabbage is used for the following titration, calculate the pH of the solution described and indicate whether the solution will be red or yellow.    If 67.00 mL of a 1.980 M HNO2 solution is reacted with 2.350 g NaOH, calculate the resulting pH.    Resulting pH = Color of Solution =

Determine the hydronium ion concentration for a solution of 0.550 M Ca(OH)2.

What is the molarity of a solution made by dissolving 3.4 g of Ba(OH)2 in enough water tomake 450. mL of solution? Assume that Ba(OH)2 dissociates completely in water to Ba2+ andOH¯ ions. What is the pH of the solution?

What is the concentration (in molarity) of H+, HCO3−, and CO32–, in a solution that is initially prepared as a mixture of 0.0100 M H2CO3 and 0.000010 M Na2CO3? (Carbonic acid is a weak diprotic acid where   Ka1 is 4.20 x 10–5 and Ka2 is 2.00 x 10–6)   a) [H+] at equilibrium = ? b) [HCO3-] at equilibrium = ? c) [CO32-] at equilibrium = ?

Calculate the number of H+(aq)H+(aq) ions in 1.2 mLmL of pure water at 25 ∘C∘C.

The formula for the conjugate acid of HPO42- is?   A student weighs out a 2.33 g sample of sodium fluoride, transfers it to a 300 mL volumetric flask, adds enough water to dissolve it and then adds water to the 300 mL tic mark. What is the molarity of NaF in the resulting solution?   A student wants to prepare a solution of iron(III) fluoride with a known molarity.How many grams of FeF3 must be weighed out to prepare 250. mL of a 0.245 M aqueous solution of the salt?   An aqueous solution has a hydroxide ion concentration of 1.0 x 10^-10 M. What is the hydronium ion concentration in this solution? Concentration =       M Is this solution acidic, basic or neutral?   An aqueous solution has a hydrogen ion concentration of 1.0 x 10^-6 M. What is the hydroxide ion concentration in this solution? Concentration =     M Is this solution acidic, basic or neutral?