All Questions
Tagged with equilibrium redox
5
questions
23
votes
2
answers
5k
views
Why don't everyday things burn?
Ok, so I learned about the equilibrium constant. Now, I've seen that the equilibrium constant of burning is extremely small $(K \ll 1)$. here, I have a question. you see, $K$ is still NOT 0, which ...
- 411
1
vote
1
answer
3k
views
Can an iodine clock reaction work without using a strong acid?
I'm going to do an iodine clock reaction for a project and we had to submit the materials and safety sheets for the experiment a while ago. I thought I could do one by using hydrogen peroxide, sodium ...
- 11
10
votes
2
answers
4k
views
Why is chromate stable in basic medium and dichromate stable in acidic medium?
When I was studying the equilibrium existing between chromate and dichromate ions in the solution, I came to know that
Chromate ion is more stable in basic medium while dichromate ion is stable in ...
- 797
2
votes
3
answers
2k
views
Why is the voltage produced by a voltaic cell affected by temperature as described by the Nernst Equation?
I understand why changing the concentrations of the electrolytes in a voltaic cell affects the voltage. Given a zinc-copper cell for example, if I were to increase the concentration of the zinc ...
- 71
1
vote
1
answer
98
views
What would be the concentration of products in this calcium producing system?
I wanted to figure out a way to make calcium metal with potassium oxide. $\ce{K2O}$ undergoes disproportionation at $\pu{350-430 °C}:$
$$\ce{2 K2O -> K2O2 + 2 K}$$
Now, if I mixed in $\ce{CaO}$ (...
- 1,480