How does your Graph 2 that you uploaded for the Boyle’s Law experiment illustrate Boyle’s law?

Which Gas Law is this:  When a fixed amount of an ideal gas is maintained at a constant temperature, the pressure and volume of the gas are inversely proportional (when one increases, the other decreases).

From Experiment 2:  Calculate the ratio of moles of H2O to moles of anhydrous KAl(SO4)2. 

A car engine it is powered by the burning of octane (C8H18) with oxygen (O2).  The combustion reaction forms carbon dioxide (CO2) and water (H2O). Write a balanced chemical equation for this combustion reaction.

What are sources of error for the Boyles Law Experiment?

List the conjugate acid or conjugate base for the base CH3NH2

A car engine it is powered by the burning of octane (C8H18) with oxygen (O2).  The combustion reaction forms carbon dioxide (CO2) and water (H2O). Assuming a reaction starts with 1 mole of octane, which burns at 220°C, and is at a pressure of 1 atm, what volume will the products occupy upon reaction completion?

From Experiment 2:  Which of these were visual characteristics of the anhydrous form of the sample? 

List the conjugate acid or conjugate base for the acid HF

For the Trigonal Bipyramidal molecular shape, identify the number of bonds around the central atom and the number of lone pairs around the central atom.