While costs vary depending on location (in-state, national, international), an hourly charge for a non-profit entity begins at $50 per site, per hour of videoconferencing.This fee includes utilizing one of our video conference rooms here at the Burns Technology Center.hile costs vary depending on location (in-state, national, international), an hourly charge for a non-profit entity begins at $50 per site, per hour of videoconferencing.
http://www.csun.edu/~hcchm001/IntroChemHandouts.html. A limiting reagent is a chemical reactant that limits the amount of product that is formed. The limiting reagent gives the smallest yield of product calculated from the reagents. (reactants) available. This smallest yield of product is called the theoretical yield.
There are several reasons why the percentage yield of a product might be less than 100 per cent, including loss when: 1  Filtering. 2  Evaporating. 3  Transferring liquids. 4  Not all reactants react to make product.