题目
2254 BIOSC 1544 SEC1000 Exam #3- Requires Respondus LockDown Browser
数值题
4-methylbenzoic acid has a carboxylate group with a pKa value of ~4.4. Rounded to the nearest integer, what is the ratio of [deprotonated]/[protonated] 4-methylbenzoic acid, at physiological pH (7.4)? (Hint: The answer to this question is an integer).
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标准答案
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思路分析
We are asked to find the ratio of deprotonated to protonated form of 4-methylbenzoic acid at pH 7.4, given pKa ≈ 4.4.
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