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13 12 NH 10 of NH NH At the midpoint of the titration where half the acid is neutralized HCOO Over much of the titration curve, the pH lies within 1 pH unit of the pKa In this range the change in pH with moles of base added 2 is minimal pH pKa 4 pka of HCOOH HCOOH 0 .5 75 Moles base added per mole acid

In regard to the picture:

1)

A) Calculate the pH of a 1 MNH4Cl solution.

B) Calculate the pH of the solution that results following addition of 10 mLof 1 MNaOH to 40 mL of 1 MNH4Cl.

C) Calculate the pH of the solution that results following addition of 30 mLof 1 MNaOH to 40 mL of 1 MNH4Cl.

Please explain too! Thanks!

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Answer #1

Hi, thanks for asking.

These are more than one question but we are glad to help you with two of them.

If you need more help we will glad to help you.

Have a nice day.

2 3 tX 2 are 4,62 4.62 og ni O. O4mol 1000 10m는등. 1000mL

2 ず0.04 0.01 0203 0.03+XX 24 -も 6.0 o-03

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