CHEM 053 Study Guide - Final Guide: Reducing Agent, Spectator Ion, Observational Error

218 views9 pages
17 May 2016
School
Department
Course
Professor

Document Summary

Adding stuff together and heat it to synthesize a compound. Writing chemical formulas (atoms, molecules, mixtures, elements, compounds) Understand, compare and calculate empirical formulas and molecular formulas. Divide all values by the lowest mol value to find mol ratio. Multiply by a whole number if necessary. Lowest whole number ratio of elements is the empirical formula. Divide mw of actual compound by this calculated mw. Multiply the entire empirical formula by this whole number. Build microscopic representations of the different states of matter and chemical substances (macro, micro and symbolic representations) Particles are usually aligned in a geometric pattern. Particles are not aligned but are all touching one another. Salts separate into ions in aq. solution. Particles are not in contact with each other/are spread out. Things that you aren"t measuring directly but that you figure out from what you directly measure. Can"t directly measure the hydrogen bonding, but we can measure the boiling.