* Ch. 1: Measurements Chem 20-1204 El Camino College * Units Units of Length meter (m), centimeter (cm), inch (in.) 1 m = 100 cm 1 m = 39.4 in. 2.54 cm = 1 in. Ex. Which…
A. Accuracy vs. Precision Accuracy - how close a measurement is to the accepted value Precision - how close a series of measurements are to each other ACCURATE = CORRECT…
A. Number vs. Quantity Quantity – is something that has magnitude, size, or amount; number + unit UNITS MATTER!! B. SI Units SI units of measurement is the system that…
Dimensional Analysis How to do dimensional analysis Identify the âgivenâ and the âget Create a âmini road mapâ Identify the conversion factors you will use based on…
1.7 Problem Solving Conversion Factors A ratio derived from the equality between two different units that can be used to convert from one unit to another Conversion Factors…
Unit ½ Introduction Stuff you should know Stuff you will need to figure out DO NOW: First thing you should do when you enter the classroom This will be a daily quiz to test…
PowerPoint Presentation Dimensional Analysis Organized method of problem-solving Used in chemistry, physics, engineering, and medicine Communicates the path to scientists…
C. Johannesson A. SI Prefix Conversions 1. Find the difference between the exponents of the two prefixes. 2. Move the decimal that many places. C. Johannesson C. Johannesson…