- #1
matthew77ask
- 45
- 0
In an experiment titration. The NaOH was added drop wise into HCl in a conical flask.
The number of drops of NaOH was recorded against the varied volume of HCl in the flask.
A graph was to be plotted of number of drops of NaOH on the y-aixs to Volume of HCl on the x-axis.
What would the shape of the graph looks like?
The students got straight lines and s-curves...
(OK it was not an accurate experiment but was used to test their other skills sets)
Many thanks
Additional Details
If the graph is pH vs volume added, then it is an S-curve, but now it is volume (number of drops) of NaOH (on y-axis) plotted against the volume of dil HCl... hence the confusion
Many thanks.
PS: I suspect a straight line as y = mx, as the number of moles for neutralisation should increase proportionally with the volume of acid...
The number of drops of NaOH was recorded against the varied volume of HCl in the flask.
A graph was to be plotted of number of drops of NaOH on the y-aixs to Volume of HCl on the x-axis.
What would the shape of the graph looks like?
The students got straight lines and s-curves...
(OK it was not an accurate experiment but was used to test their other skills sets)
Many thanks
Additional Details
If the graph is pH vs volume added, then it is an S-curve, but now it is volume (number of drops) of NaOH (on y-axis) plotted against the volume of dil HCl... hence the confusion
Many thanks.
PS: I suspect a straight line as y = mx, as the number of moles for neutralisation should increase proportionally with the volume of acid...