Three flasks, labeled A, B, and C, contained aqueous solutions of the same pH. It was...

Three flasks, labeled A, B, and C, contained aqueous solutions of the same pH. It was known that one of the solutions was 1.0 × 10–3 M in nitric acid, one was 6 × 10–3 M in formic acid, and one was 4 × 10–2 M in the salt formed by the weak organic base aniline with hydrochloric acid (C6H5NH3Cl). (Formic acid is monoprotic.)

(a) Describe a procedure for identifying the solutions.

(b) Compare qualitatively (on the basis of the preceding information) the strengths of nitric and formic acids with each other and with the acid strength of the anilinium ion,

(c) Show how the information given may be used to derive values for Ka for formic acid and Kb for aniline. Derive these values.

Solutions

Expert Solution

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

Two identical flasks of the same volume are labeled A and B. Flask A contains NH3(g)...

Two identical flasks of the same volume are labeled A and B. Flask A contains NH3(g) at 50oC and flask B contains HCl (g) at 50oC. KE=1/2 mv2. a) Which molecule is moving the most rapidly? Explain. b) Give two ways you could increase the pressure in the flask containing the NH3(g) c) Do both molecules have the same kinetic energy? Justify your answer.

Calculate the pH and pOH of the following aqueous solutions at 25°C:

Calculate the pH and pOH of the following aqueous solutions at 25°C: (a) 0.629 M LiOH pH = pOH = (b) 0.199 M Ba(OH)2 pH = pOH = (c) 0.0620 M NaOH pH = pOH =

Calculate the pH of the following aqueous solutions at 25°C. Kw at 25°C is 1.01e-14. (a) 2.9 ...

Calculate the pH of the following aqueous solutions at 25°C. Kw at 25°C is 1.01e-14. (a) 2.9 ✕ 10−11M KOH (HINT: Does it make sense to get an acidic pH for this? A neutral solution may have a higher concentration of OH- than this solution.) 1 (b) 9.1 ✕ 10−7M HNO3 2

Calculate the PH of the following solutions a) 25g HCIO4 in 500ml aqueous solution b) 0.2M...

Calculate the PH of the following solutions a) 25g HCIO4 in 500ml aqueous solution b) 0.2M hydrofluoric acid c) 0.02M Ca(OH)2 d) 25g HCIO and 30g Ca(CIO)2 in 1000ml aqueous solution

Complete this table of values for four aqueous solutions at 25 °C. [H+] [OH-] pH pOH...

Complete this table of values for four aqueous solutions at 25 °C. [H+] [OH-] pH pOH solutionA : 8.7x10^-7 M solutionB: 6.9x10^-9 M solutionC: 9.75 solution D: 6.39

The density of many aqueous solutions is approximately the same as water: 1.00g/mL. For these solutions,...

The density of many aqueous solutions is approximately the same as water: 1.00g/mL. For these solutions, molarity is ____ molality. Answer choices: greater than, the same as or less than

Part A) Three different aqueous solutions are made at 25 °C, each containing one of the...

Part A) Three different aqueous solutions are made at 25 °C, each containing one of the amphoteric salts below. Classify each solution as acidic, neutral, or basic. Ionization constants can be found here. (https://sites.google.com/site/chempendix/ionization) 1) sodium hydrogen carbonate 2) lithium hydrogen oxalate 3) potassium dihydogen phosphite The ionization constants are only to be used in part A -------------------------------------------------------------------------------------------------------------- Part B) Assuming equal concentrations, rank these solutions by pH. Please order pH from highest to Lowest NH4NO3 (aq), LiOH (aq), HNO3...

HCl and HNO3 have the same strength in aqueous solutions. This is an example of the...

HCl and HNO3 have the same strength in aqueous solutions. This is an example of the leveling effect. True or False

A student was given buffer solutions to calibrate the pH electrode that were labeled incorrectly. The...

A student was given buffer solutions to calibrate the pH electrode that were labeled incorrectly. The pH's of both buffer solutions were actually lower than the pH's shown on the labels. Explain how such an error would affect the experimental result for the Ka of acetic acid.

Three train carriages, A, B and C, are on the same track with B between A...

Three train carriages, A, B and C, are on the same track with B between A and C. They all have the same mass, ?, and B is coupled with C. The coupling can be described as a massless spring with the spring constant ?. B and C stand still on the track, while A moves towards B at a constant speed ?0. A abuts B and undergoes a completely elastic collision. What is the maximum compression of the spring...

Subjects