1). A 27.1 mL sample of 0.342 M trimethylamine, (CH3)3N, is titrated with 0.336 M hydrochloric...

1). A 27.1 mL sample of 0.342 M trimethylamine, (CH3)3N, is titrated with 0.336 M hydrochloric acid. The pH before the addition of any hydrochloric acid is _____

2). A 20.8 mL sample of 0.305 M dimethylamine, (CH₃)₂NH, is titrated with 0.255 M hydroiodic acid.

At the equivalence point, the pH is ______

3). A 26.2 mL sample of 0.251 M diethylamine, (C₂H₅)₂NH, is titrated with 0.215 M hydrobromic acid.

After adding 42.8 mL of hydrobromic acid, the pH is _____

Expert Solution

queen_honey_blossom answered 3 years ago

A 25.6 mL sample of 0.219 M trimethylamine, (CH3)3N, is titrated with 0.373 M hydrochloric acid....

A 25.6 mL sample of 0.219 M trimethylamine, (CH3)3N, is titrated with 0.373 M hydrochloric acid. After adding 5.62 mL of hydrochloric acid, the pH is .

A 24.3 mL sample of 0.349 M dimethylamine, (CH3)2NH, is titrated with 0.275 M hydrochloric acid....

A 24.3 mL sample of 0.349 M dimethylamine, (CH3)2NH, is titrated with 0.275 M hydrochloric acid. (1) Before the addition of any hydrochloric acid, the pH is _____ (2) After adding 13.6 mL of hydrochloric acid, the pH is _____ (3) At the titration midpoint, the pH is _____ (4) At the equivalence point, the pH is _____ (5) After adding 45.9 mL of hydrochloric acid, the pH is _____ Equilibrium constants are found here: https://docs.google.com/document/d/1cNVOoEOVMqPSx8QdL8mc3zd8yFTwBx8VWd2MiDCDA1o/edit

Determine the pH during the titration of 36.3 mL of 0.281 M trimethylamine ((CH3)3N, Kb =...

Determine the pH during the titration of 36.3 mL of 0.281 M trimethylamine ((CH3)3N, Kb = 6.3×10-5) by 0.281 M HBr at the following points. (Assume the titration is done at 25 °C.) Note that state symbols are not shown for species in this problem. (a) Before the addition of any HBr ? (b) After the addition of 15.7 mL of HBr ? (c) At the titration midpoint ? (d) At the equivalence point ? (e) After adding 57.7 mL...

Determine the pH during the titration of 36.0 mL of 0.235 M trimethylamine ((CH3)3N, Kb =...

Determine the pH during the titration of 36.0 mL of 0.235 M trimethylamine ((CH3)3N, Kb = 6.3×10-5) by 0.235 M HBr at the following points. (Assume the titration is done at 25 °C.) Note that state symbols are not shown for species in this problem. a.) Before the addition of any HBr b.) After the addition of 15.3 mL of HBr c.) At the titration midpoint d.) At the equivalence point e.) After adding 56.2 mL of HBr

A 100.0-mL sample of 0.2 M (CH3)3N (Kb = 5.28 × 10–5) is titrated with 0.2...

A 100.0-mL sample of 0.2 M (CH3)3N (Kb = 5.28 × 10–5) is titrated with 0.2 M HCl. What is the pH at the equivalence point?

Calculate the pH during the titration of 20.00 mL of 0.1000 M trimethylamine, (CH3)3N(aq), with 0.1000...

Calculate the pH during the titration of 20.00 mL of 0.1000 M trimethylamine, (CH3)3N(aq), with 0.1000 M HNO3(aq) after 19.4 mL of the acid have been added. Kb of trimethylamine = 6.5 x 10-5 Correct Answer: 8.30 ± 0.02

A 25.0 mL sample of a 0.3400 M solution of aqueous trimethylamine is titrated with a...

A 25.0 mL sample of a 0.3400 M solution of aqueous trimethylamine is titrated with a 0.4250 M solution of HCl. Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pKb of (CH3)3N = 4.19 at 25°C.

1. A 29.3 mL sample of 0.369 M ethylamine, C2H5NH2, is titrated with 0.205 M hydrochloric...

1. A 29.3 mL sample of 0.369 M ethylamine, C2H5NH2, is titrated with 0.205 M hydrochloric acid. After adding 74.4 mL of hydrochloric acid, the pH is: 2. A 26.4 mL sample of 0.296 M diethylamine, (C2H5)2NH, is titrated with 0.206 M hydrobromic acid. After adding 15.2 mL of hydrobromic acid, the pH is: 3. Calculate the pH and the equilibrium concentrations of HCO3- and CO32- in a 0.0510 M carbonic acid solution, H2CO3 (aq). For H2CO3, Ka1 = 4.2×10-7...

1.) A 25.3 mL sample of 0.329 M triethylamine, (C2H5)3N, is titrated with 0.344 M nitric...

1.) A 25.3 mL sample of 0.329 M triethylamine, (C2H5)3N, is titrated with 0.344 M nitric acid. The pH before the addition of any nitric acid = 2.) A 20.8 mL sample of 0.275 M triethylamine, (C2H5)3N, is titrated with 0.304 M hydrochloric acid. At the equivalence point, the pH =

The odor of a dead fish is attributed to trimethylamine, (CH3)3N, one of a series of...

The odor of a dead fish is attributed to trimethylamine, (CH3)3N, one of a series of compounds of nitrogen, carbon, and hydrogen with a general formula of (CH3)nNH3-n where n = 0-3 (the n = 0 compound is ammonia). a) The Kb of trimethylamine [(CH3)3N)] is 6.5E-5 at 25 C. Calculate the pH of 3.00nE-4 M solution of dimethylamine. b) The Kb of mythylamine [(CH3)NH2] is 4.4E-4 at 25 C. Calculate the pH of 2.88E-3 M solution of mythylamine. c)...

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