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Using the table of the weak base below, you have chosen Ammonia as your weak base in the buffer solution. You have already added enough of the conjugate acid salt to make the buffer solution concentration at 0.65 M in this salt. The desired pH of the buffer should be equal to 8.8. Values of K, for Some Common Weak Bases Conjugate Acid Name Formula 1.8 × 10-5 4.38 x 10-4 5.6 x 10-4 3.8 × 10-10 1.7 x 10-9 Ammonia Methylamine Ethylamine Aniline NH3 CH;NH2 C¿H5NH2 CH§NH2 C;H;N NH,+ CH;NH3+ CH§NH;* CH;NH;* Pyridine C:HNH+ To prepare the buffer, a total volume of 300 mL is required. The stock solution of the weak base is available at 1 gallon with a concentration of 0.85 M. (Remember the lesson on dilution: C1V1=C2V2) 4/4. How many mL should be taken from the stock solution to prepare the desired buffer solution? (round off final answer to 3 decimal places)

Using the table of the weak base below, you have chosen Ammonia as your weak base in the buffer solution. You have already added enough of the conjugate acid salt to make the buffer solution concentration at 0.65 M in this salt. The desired pH of the buffer should be equal to 8.8. Values of K, for Some Common Weak Bases Conjugate Acid Name Formula 1.8 × 10-5 4.38 x 10-4 5.6 x 10-4 3.8 × 10-10 1.7 x 10-9 Ammonia Methylamine Ethylamine Aniline NH3 CH;NH2 C¿H5NH2 CH§NH2 C;H;N NH,+ CH;NH3+ CH§NH;* CH;NH;* Pyridine C:HNH+ To prepare the buffer, a total volume of 300 mL is required. The stock solution of the weak base is available at 1 gallon with a concentration of 0.85 M. (Remember the lesson on dilution: C1V1=C2V2) 4/4. How many mL should be taken from the stock solution to prepare the desired buffer solution? (round off final answer to 3 decimal places)

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter15: Acid–base Equilibria
Section: Chapter Questions
Problem 56P
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Using the table of the weak base below, you have chosen Ammonia as your weak base in the buffer solution. You have already added enough of the conjugate acid salt to make the buffer solution concentration at 0.65 M in this salt. The desired pH of the buffer should be equal to 8.8. Values of K, for Some Common Weak Bases Conjugate Acid Name Formula 1.8 × 10-5 4.38 x 10-4 5.6 x 10-4 3.8 × 10-10 1.7 x 10-9 Ammonia Methylamine Ethylamine Aniline NH3 CH;NH2 C¿H5NH2 CH§NH2 C;H;N NH,+ CH;NH3+ CH§NH;* CH;NH;* Pyridine C:HNH+ To prepare the buffer, a total volume of 300 mL is required. The stock solution of the weak base is available at 1 gallon with a concentration of 0.85 M. (Remember the lesson on dilution: C1V1=C2V2) 4/4. How many mL should be taken from the stock solution to prepare the desired buffer solution? (round off final answer to 3 decimal places)
Transcribed Image Text:Using the table of the weak base below, you have chosen Ammonia as your weak base in the buffer solution. You have already added enough of the conjugate acid salt to make the buffer solution concentration at 0.65 M in this salt. The desired pH of the buffer should be equal to 8.8. Values of K, for Some Common Weak Bases Conjugate Acid Name Formula 1.8 × 10-5 4.38 x 10-4 5.6 x 10-4 3.8 × 10-10 1.7 x 10-9 Ammonia Methylamine Ethylamine Aniline NH3 CH;NH2 C¿H5NH2 CH§NH2 C;H;N NH,+ CH;NH3+ CH§NH;* CH;NH;* Pyridine C:HNH+ To prepare the buffer, a total volume of 300 mL is required. The stock solution of the weak base is available at 1 gallon with a concentration of 0.85 M. (Remember the lesson on dilution: C1V1=C2V2) 4/4. How many mL should be taken from the stock solution to prepare the desired buffer solution? (round off final answer to 3 decimal places)
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