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12 Dec 2019

A 29.9 mL sample of 0.388 M ethylamine, C2H5NH2, is titrated with 0.312 M nitric acid. The pH before the addition of any nitric acid is .

A 25.3 mL sample of 0.333 M dimethylamine, (CH3)2NH, is titrated with 0.272 M nitric acid. After adding 12.2 mL of nitric acid, the pH is .

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Jamar Ferry
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13 Dec 2019

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Related questions

A)

Kb=6.9×10-4 for diethylamine

A 26.8 mL sample of 0.330 M diethylamine, (C2H5)2NH, is titrated with 0.333 M hydrobromic acid.

The pH before the addition of any hydrobromic acid is ___ .

B)

Kb=6.3×10-5 for trimethylamine

A 22.2 mL sample of 0.275 M trimethylamine, (CH3)3N, is titrated with 0.293 M nitric acid.

At the equivalence point, the pH is ___.

C)

Kb=5.9×10-4 for dimethylamine

A 25.9 mL sample of 0.239 M dimethylamine, (CH3)2NH, is titrated with 0.213 M hydroiodic acid.

At the titration midpoint, the pH is ___.

Calculate the pH when 20.0 mL of 0.200M ethylamine (C2H5NH2) are titrated with 10.0 mL of 0.300M nitric acid. Kb for ethylamine is 1.1×10-6.


A 20.9 mL sample of 0.306 M trimethylamine, (CH3)3N, is titrated with 0.304 M nitric acid.

The pH before the addition of any nitric acid is .

Use the Tables link in the References for any equilibrium constants that are required.

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