For each of the following solutions, calculate the initial pH and the final pH after adding 0.005...

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Question

For each of the following solutions, calculate the initial pH and the final pH after adding 0.005...

For each of the following solutions, calculate the initial pH and the final pH after adding 0.005 mol of NaOH.

a. For 220.0 mL of pure water, calculate the initial pH and the final pH after adding 0.005 mol of NaOH.

Express your answers using two decimal places separated by a comma. (I already did part a)

pHinitial, pHfinal =

7.00,12.36

b. For 220.0 mL of a buffer solution that is 0.225 M in HCHO2 and 0.280 M in KCHO2, calculate the initial pH and the final pH after adding 0.005 mol of NaOH. Express your answers using two decimal places separated by a comma.

pHinitial, pHfinal =

_____,_____

c. For 220.0 mL of a buffer solution that is 0.300 M in CH3CH2NH2 and 0.275 M in CH3CH2NH3Cl, calculate the initial pH and the final pH after adding 0.005 mol of NaOH. Express your answers using two decimal places separated by a comma.

pHinitial, pHfinal =

_____,_____

science chemistry

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Answer 1

Answer #1

H CH03 salt) Peid pHi = 375 244 iniba 3S 3.75ナ Pt HCHO2 七NadH θ20mLYO, 22 g 0502 mol o.0 495 mol [00501] [0.0니니5] finoJ = 31s for 14-3.2- 0 ,ヌ75) o 300 요여 (0.9167) Indie是 0、005 mol 0 066 0.0605 0.0 Co osss 0,011 14-3.2-

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Answer 2

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