Which Substance Has the Lowest Hydrogen Ion Concentration?

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Discussion Overview

The discussion revolves around determining which of several substances has the lowest concentration of hydrogen ions. The substances in question include 0.1 M HCl, 0.1 M NaOH, 0.1 M H2SO4, and pure water. The context appears to be related to a chemistry homework problem involving acids and bases.

Discussion Character

  • Homework-related, Conceptual clarification

Main Points Raised

  • One participant seeks to identify the substance with the lowest hydrogen ion concentration among the given options.
  • Another participant suggests writing down the ionic components of each compound and calculating the pH based on the molar quantities of ions present.
  • A third participant expresses uncertainty about how to approach the calculations involved.
  • One reply offers a link to a search engine as a resource for further information.
  • Another participant notes that the highest concentration of hydrogen ions comes from the substance that dissociates the most hydrogen ions, implying that the dissociation characteristics of the acids and bases are crucial to the solution.
  • This participant also emphasizes the importance of understanding acids and bases to answer the question effectively.

Areas of Agreement / Disagreement

There is no consensus on the answer to the question, and multiple viewpoints regarding how to approach the problem are present. Participants express varying levels of understanding and suggest different methods for solving the problem.

Contextual Notes

Participants have not fully resolved the calculations needed to determine the hydrogen ion concentrations, and there may be assumptions about the dissociation of the acids that are not explicitly stated.

bjoyful
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I am trying to find the lowest concentration of hydrogen ions out of the following:

0.1 M HCl
0.1 M NaOH
0.1 M H2SO4
pure water

I am having a hard time with the book and this...Thanks
 
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Have you tried writing down the Ionic components of each of the three compounds you list? then calculate the pH of each solution from the molar quantities of each ion present
 
Last edited:
Umm, not to be dumb or anything, but how does one go about that:(
 
Might I suggest http://www.google.com/" to get you started
 
Last edited by a moderator:
The highest concentration of hydrogen ions comes from the substance which has the most hydrogen ions to dissociate. Notice that for the solutes, each choice is 0.1 M, except for the distilled water choice. Now, for each mole of solute, which one gives the most hydrogen ions?

You need to be studying acids and bases in your chemistry course (at least "Introductory") in order to know how to answer.
 

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