Does water/ or solid have concentration?

AI Thread Summary
The discussion centers on whether water or solids have concentration in the context of chemical reactions. It questions the common practice of treating the concentration of solids or solvents, like water, as constant and replacing them with a single molarity (M) in equilibrium expressions. Participants explore the rationale behind this approach, noting that the concentration of solids and pure solvents typically remains relatively unchanged during reactions. This leads to the conclusion that they can be effectively omitted from the equilibrium constant (Kc) calculations, as seen in the expression for the ion product of water (Kw = Kc[H2O]=[H][OH]). The conversation highlights the importance of understanding the role of concentration in chemical equilibria and the implications of simplifying assumptions in calculations.
mcato_O
Messages
3
Reaction score
0
does water/ or solid have concentration?

does water/ or solid have concentration?
Why do we just ignore the concentration of solid or solution solvent and replace it as one M? I always thought the reason is because the concentration of solid or water solvent does not change much so in practice we just move it to the Kc side” such as Kw = Kc[H2O]=[H][OH]? Now I am not so sure
 
Chemistry news on Phys.org

Similar threads

Boiling Tap Water for Drinking: Benefits & Risks
Replies
4
Views
4K
Perfect Espresso Water Chemistry
Replies
7
Views
4K
Potential across a battery cell change ion concentrations and electron flow
Replies
4
Views
2K
Electrolysis of Water -- Rate of Reaction?
Replies
8
Views
3K
Approximations in Chemical Equilibrium (add a weak acid HA into pure water)
Replies
3
Views
2K
How does a buffer actually work?
Replies
1
Views
2K
Calculate the HCl concentration in H2O from the conductivity
Replies
5
Views
6K
Calculating time to reduce alcohol in wine using heating method
3
Replies
131
Views
9K
How do I convert specific gravity of salt water to density and concentrations?
Replies
10
Views
4K
Chemical water treatment: Acid base reaction
Replies
2
Views
3K

Hot Threads

Recent Insights

Back
Top