Because the purpose of
our experiment was to verify Dalton’s law, our hypothesis
was his law.
Our hypothesis for regular air looked like
pressure (100%) = partial pressure of oxygen (22%) + partial pressure
of nitrogen (78%).
Our hypothesis for the Nitrox we used (a mixture of 40% oxygen and 60% nitrogen) was: total pressure (100%) = partial pressure of oxygen (40%) + partial pressure of nitrogen (60%).
see results graph for a comparison between our hypothesis and our results