Monday, September 19, 2011
Mon-Day 2
AP Chem - now that we have established how to get the percent composition (mass) of each element in any known compound from its formula, we now worked out how to go from the percent composition by mass of the elements in any compound to that compound's EMPIRICAL formula. We saw that many molecular formulas with common subscript multiples will have the same percent composition, so we also need mass spec. data in order to get the molecular formula, by calculating the "scaling factor".
Bio - took our first unit exam today. Multiple choice average was 20 out of 23, which is good.
In 7/8, we discussed how to make measurements of cells/specimen diameters, using our field of view measurements.
Bio - took our first unit exam today. Multiple choice average was 20 out of 23, which is good.
In 7/8, we discussed how to make measurements of cells/specimen diameters, using our field of view measurements.
# posted by C @ 4:06 PM 
