Dimensional Analyisis

Blog Post #3

(October 30, 2015)

People use dimensional analysis to convert one quantity to another.
In dimensional analysis, the two diagonals must equal the same units as each other.

http://www.chemistryland.com/CHM151S/01-Foundation/DimensionalAnalysis/NewApproachCrop.gif

Given Unit/(Starting Info) X Desired Unit/Given Unit = Desired Unit (Asking to solve for)

What happens when your unit is squared or cubed?
When you square, or cube, the unit, remember to cube the number as well.
For example:
56in^3 to cm^3
56in x in x in x 2.54cm/1in x 2.54cm/1in x 2.54cm/1in
The inches cancel out, leaving you with cm^3.

Other important info:
Density: mass over volume
ex: mass=224.50g
volume=10.0cm^3
224.50/10.0=22.5g/cm^3
Temperature: measure of the average kinetic energy of the particles in a sample. (Will Never Be Negative!)

Addition info:
Math Skills Review-Dimensional Analysis
Fun With Dimensional Analysis

(Dimensional Analysis Review Video)