The table below shows the results of experiments to measure the
volume of dilute H2SO4 needed to neutralize the mass of NaOH
dissolved in the volume of water
Expt Vol of H2SO4 acid
required Mass of
NaOH/g Vol. of water/cm3
1
20
1
20
2
40 2 40
3
40
2 20
4 ?
1 40
From these results, what is the volume of H2SO4 needed to
neutralize NaOH in the 4th experiment?
Answer is 20cm3
I have difficulties interpreting data set 2 and 3. Why is it
that when NaOH is dissolved in the different volumes of water, the
volume of H2SO4 needed for neutalization remains the same? And how
do I obtain the answer for experiment 4? How does result for
experiment 1 actually give clues as to how to get answer for expt4?
(Lots of unanswered questions in my head actually)
A big thanks!