Discussion Overview
The discussion revolves around the value of the ion product of water (Kw) at 10°C, particularly in the context of calculating hydroxide ion concentration in a strong acid solution. Participants explore the implications of temperature on Kw and its application in a homework problem.
Discussion Character
- Homework-related
- Debate/contested
- Technical explanation
Main Points Raised
- One participant asserts that the concentration of OH- in 1 M HCl at 10°C should yield a value of 3x10^15, but questions this based on their calculation yielding 1x10^-14.
- Another participant provides a link to a table that presumably lists Kw values at different temperatures.
- A participant expresses confusion about how to calculate the OH- concentration for the MCAT at 10°C.
- One participant defines Kw as the equilibrium constant for [H+] and [OH-], stating that it remains at 10^-14 in aqueous solution.
- Another participant reiterates that Kw remains at 10^-14 but questions whether the previous participant has seen the table that lists the Kw value at 10°C.
Areas of Agreement / Disagreement
There is no consensus on the correct value of Kw at 10°C, as participants express differing views and calculations regarding its implications and the hydroxide concentration derived from it.
Contextual Notes
Participants have not resolved the assumptions regarding the temperature dependence of Kw and its impact on calculations. There is also uncertainty about the accuracy of the provided table and its relevance to the problem at hand.