All Questions
4
questions
0
votes
1
answer
72
views
Calculating the change in pH upon diluting an acid
What volume of water is added to $\pu{400 ml}$ of $\ce{HCL}$ solution so that the pH of the solution increases by 1 unit
This is how far i went but the answer says $\pu{1000 ml }$ where am I wrong is ...
3
votes
0
answers
546
views
Enthalpy change of chromate-dichromate reaction
I am a uni study doing chemistry. I have taken a little bit in highschool before, but not in a while.
In a (nonassessed) practical, we have to predict how heating a chromate/dichromate solution:
$$\...
- 445
1
vote
1
answer
365
views
Finding the concentration of ferrous thiocyanate in calibration solutions
Concentration of $\ce{Fe(SCN)^{2+}}$ in calibration solutions
Recall that the concentration of $\ce{Fe(SCN)^{2+}}$ in the calibration solutions is essentially the concentration of the $\ce{SCN-}$ ...
- 33
5
votes
1
answer
138
views
Equilibrium concentration, where does the 5.00 for iron thiocyanate complex come from?
Trial #1:
$$\ce{Fe^3+(aq) + SCN^- (aq) -> FeSCN^2+(aq)}$$
\begin{array}{|r|c|c|c|}\hline
\mathrm{Initial~}(M)&\phantom{-}6.00 &\phantom{-}10.00&\phantom{-}0.00\\\hline
\mathrm{...
- 97