What Is the Meaning of pH = pKa - 1?

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Discussion Overview

The discussion revolves around the interpretation of the equation pH = pKa - 1, specifically focusing on the meaning of the expression and the ratio it implies. Participants are attempting to clarify the question and the potential answers related to this equation.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant suggests that the ratio implied by pH = pKa - 1 is 1:10, but expresses uncertainty about the meaning of pKa - 1.
  • Another participant challenges the clarity of the initial statements, questioning the meaning of the terms used and asserting that pKa - 1 simply means the value of pKa minus one.
  • A later post attempts to clarify the potential answers as (a) 10:1 and (b) 1:10, but does not provide further insight into the question itself.
  • One participant requests a precise quotation of the question to better understand the context of the answers provided.
  • Another participant reiterates that the question being discussed is meaningless, indicating a lack of clarity in the discussion.

Areas of Agreement / Disagreement

Participants do not appear to agree on the clarity or meaning of the question regarding pH = pKa - 1, with some asserting that the question is meaningless while others attempt to provide answers.

Contextual Notes

The discussion reflects confusion over the terminology and the framing of the question, with no consensus on the interpretation of the equation or the proposed answers.

mimi88
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Homework Statement
a,10:1
b,1:10
Relevant Equations
pH=Pka
I think it is 1:10 but I am not sure the meaning of PKa -1, can someone explain it please.
 
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Nothing you say makes any sense. What are a and b? "The ratio of x = y" is meaningless. The meaning of pKa - 1 is the value of pKa minus one; where's the problem?
 
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Sorry for the mistakes. a) 10:1
b) 1:10
 
That still gives no help to answering the question. Presumably a) and b) are alternative answers to the question, but what was the question? Can you quote it - as exactly as possible please.
 
The question is ' What is the ratio of pH= pKa-1? Two choices are given :

(a)10:1
(b)1:10

so I think the answer is (b)
 
I repeat, the question is meaningless.
 

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