In the actual experiment 146.2 mL of O2(g) was collected. This is because the O2(g) was collected over water and the atmospheric pressure includes both the pressure of oxygen and water vapor. Use Dalton’s Law of Partial Pressures and Boyle’s Law to correct for the water vapor pressure and determine the volume of dry oxygen.

The atom fluorine generally will become stable through the formation of an ionic chemical compound by accepting electron(s) from another atom. this process will fill its outer energy level of electrons.

Challenge question: this question is worth 6 points. as you saw in problem 9 we can have species bound to a central metal ion. these species are called ligands. in the past we have assumed all the d orbitals in some species are degenerate; however, they often are not. sometimes the ligands bound to a central metal cation can split the d orbitals. that is, some of the d orbitals will be at a lower energy state than others. ligands that have the ability to cause this splitting are called strong field ligands, cnâ’ is an example of these. if this splitting in the d orbitals is great enough electrons will fill low lying orbitals, pairing with other electrons in a given orbital, before filling higher energy orbitals. in question 7 we had fe2+, furthermore we found that there were a certain number (non-zero) of unpaired electrons. consider now fe(cn)6 4â’: here we also have fe2+, but in this case all the electrons are paired, yielding a diamagnetic species. how can you explain this?

When developing a model of the cycling of water between the land, ocean, and atmosphere, one must include the forces that propel the water. for the model, these forces would be which of the following?