Life of Fred Chemistry Author:Stanley Schmidt PhD In a single lecture hour Fred... — Finds the weight of a helium atom using ordinary high school chem lab equipment — Determines the value of absolute zero (-273o C) using ordinary high school chem lab equipment — Creates the periodic table of the elements step-by-step — Explains why both Mn 2+ and Mn 3+ exist Supervises student lab experiments — Comp... more »letes a whole year of high school chemistry.« less