Essential Organic Chemistry, Global Edition
Essential Organic Chemistry, Global Edition
3rd Edition
ISBN: 9781292089034
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 2, Problem 50P
Interpretation Introduction

Interpretation:

Among the two buffers protonated methylamine/methylamine buffer and protonated ethylamine/ethylamine buffer the buffer which is better to carry out a reaction that produces protons has to be determined.

Concept Introduction:

Important formulas regarding acid-base concepts are:

    pH =-log(H+)pOH = -log(-OH)pKa = -logKapH+pOH =  14

Henderson-Hasselbalch equation

  pKa=pH+log[HA][A-]

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You are planning to carry out a reaction that produces protons. The reaction will be buffered at pH = 10.5. Would it be better to use a protonated methylamine/methylamine buffer or a protonated ethylamine/ethylamine buffer? (pKa of protonated methylamine = 10.7; pKa of protonated ethylamine = 11.0)
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Chapter 2 Solutions

Essential Organic Chemistry, Global Edition

Ch. 2.3 - a. Which is a stronger base, CH3COO or HCOO? (The...Ch. 2.3 - Using the pKa values in Section 2.3, rank the...Ch. 2.4 - Prob. 13PCh. 2.5 - Prob. 14PCh. 2.5 - Ethyne has a pKa value of 25, water has a pKa...Ch. 2.5 - Which of the following bases can remove a proton...Ch. 2.6 - List the ions (CH3, NH2, HO, and F) in order from...Ch. 2.6 - List the carbanions shown in the margin in order...Ch. 2.6 - Which is a stronger acid?Ch. 2.6 - a. Draw the products of the following reactions: A...Ch. 2.6 - List the halide ions (F, Cl, Br, and I) in order...Ch. 2.6 - a. Which is more electronegative, oxygen or...Ch. 2.6 - Which is a stronger acid? a. HCl or HBr b....Ch. 2.6 - a. Which of the halide ions (F, Cl, Br, and I) is...Ch. 2.6 - Which is a stronger base? a. H2O or HO b. H2O or...Ch. 2.7 - Which is a stronger acid? a. CH3OCH2CH2OH or...Ch. 2.7 - Which is a stronger base?Ch. 2.8 - Fosamax has six acidic groups. The structure of...Ch. 2.8 - Which is a stronger acid? Why?Ch. 2.10 - For each of the following compounds (shown in...Ch. 2.10 - Prob. 33PCh. 2.11 - Write the equation that shows how a buffer made by...Ch. 2.11 - What products are formed when each of the...Ch. 2 - a. List the following alcohols in order from...Ch. 2 - Which is a stronger base? a. HS or HO b. CH3O or...Ch. 2 - Prob. 40PCh. 2 - a. List the following carboxylic acids in order...Ch. 2 - For the following compound, a. draw its conjugate...Ch. 2 - List the following compounds in order from...Ch. 2 - For each of the following compounds, draw the form...Ch. 2 - Give the products of the following acidbase...Ch. 2 - Prob. 46PCh. 2 - For each compound, indicate the atom that is most...Ch. 2 - Tenormin, a member of the group of drugs known as...Ch. 2 - From which acids can HO remove a proton in a...Ch. 2 - Prob. 50PCh. 2 - Which is a stronger acid? a. CH29CHCOOH or...Ch. 2 - Prob. 52PCh. 2 - Prob. 53PCh. 2 - How could you separate a mixture of the following...Ch. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Draw the products of the following acidbase...Ch. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - Prob. 7PCh. 2 - Prob. 8PCh. 2 - Prob. 9PCh. 2 - Prob. 10PCh. 2 - Prob. 11PCh. 2 - Prob. 12PCh. 2 - Prob. 13PCh. 2 - Prob. 14P
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