a)During an experiment, a student mixed 14.5mL of a 0.500 M sodium fluoride solution with 15.6...

a)During an experiment, a student mixed 14.5mL of a 0.500 M sodium fluoride solution with 15.6 mL of a 0.750 M hydrofluoric acid solution the measured pH was 3.24.Calculate the pKa.b)Calculate th pH of a solution prepared by mixing 20.5 mL of a 0.500 M sodium flouride solution with 32.5 mL of a 0.750 M hydrofluoric acid solution. Use pKa from question 1

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queen_honey_blossom answered 1 year ago

In an experiment, a solution sulfuric acid is mixed with an excess of sodium carbonate. One...

In an experiment, a solution sulfuric acid is mixed with an excess of sodium carbonate. One of the products is a gas. This gas is collected in a one-liter flask at 20.0°C. What will be the pressure in the flask if 113 mL of the sulfuric acid solution is used? The [H2SO4] can be found from its complete titration (25.0 mL H2SO4) with 16.0 mL of NaOH (NaOH : standardized with 58.7 mL of a 1.000 M HCl)

What is the pH of a 0.186 M aqueous solution of sodium fluoride, NaF? (Ka for...

What is the pH of a 0.186 M aqueous solution of sodium fluoride, NaF? (Ka for HF = 7.2×10-4)

Determine the mass of sodium phosphate required to prepare 100.00 mL of a 0.500 M solution....

Determine the mass of sodium phosphate required to prepare 100.00 mL of a 0.500 M solution. Solid sodium phosphate, Na3PO4, will be provided; it has a formula weight of 163.94 g/mol.

A 1 liter solution contains 0.382 M hydrofluoric acid and 0.509 M sodium fluoride. Addition of...

A 1 liter solution contains 0.382 M hydrofluoric acid and 0.509 M sodium fluoride. Addition of 0.191 moles of sodium hydroxide will: (Assume that the volume does not change upon the addition of sodium hydroxide.) Raise the pH slightly, Lower the pH slightly, Raise the pH by several units, Lower the pH by several units, Not change the pH ,Exceed the buffer capacity

The molar solubility of barium fluoride in a 0.216 M ammonium fluoride solution is M.

A solution is made by a dissolving 16.8 g of sodium fluoride , NaF , in...

A solution is made by a dissolving 16.8 g of sodium fluoride , NaF , in enough water to make exactly 500.ml of solution . Calculate the molarity of each species: NaF, Na+ and F-.

13.A student mixes 100.0 mL of 0.500 M AgNO3 with 100.0 mL of 0.500 M CaCl2....

13.A student mixes 100.0 mL of 0.500 M AgNO3 with 100.0 mL of 0.500 M CaCl2. a.Write the balanced molecular equation for the reaction. b.Write the net ionic equation for the reaction. c.How many grams of precipitate will form? d.What is the concentration of Ag+, NO3‒, Ca2+, and Cl‒ in the final solution (assume volumes are additive).

A 100 mL solution of .400 M Sodium Acetate (NaOAc) mixed with 100 ml of .400 M HCl.

Determine the [H3O+] and [OH-] for the following: A 100 mL solution of .400 M Sodium Acetate (NaOAc) mixed with 100 ml of .400 M HCl.

A solution of 100 mL of .200M sodium chromate is mixed with a solution of 200...

A solution of 100 mL of .200M sodium chromate is mixed with a solution of 200 mL of 0.150M strontium nitrate. What is the is the limiting reagent or reacting? How many grams of percipitate forms? What is the concentration of spectator ions in the final mixture? What is the concentration of the excess ion?

A) What is the pH of a solution with a fluoride concentration of 0.272 M? The...

A) What is the pH of a solution with a fluoride concentration of 0.272 M? The Kb for F- is 1.47 x 10^-11. B) Calculate the pH value of of a 0.015 M solution of pyridine, C5H5N. The Kb of pyridine is 1.7 x 10^-9. Enter your values for a, b, and c for the quadratic equation along with the final answer.

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