CHEM 101 Lecture Notes - Lecture 4: 2G, Standard Operating Procedure, Conversion Of Units

• School: Binghamton University
• Department: Chemistry
• Course: CHEM 101
• Professor: Steven Boyer

Document Summary

Ratio that specifies how one unit of measurement is related to another. They allow us to convert from one unit to another through their equivalence statement. 1 day = 24 hours is the definition. 1 day/24 hours or 24 hours/1 day are the conversion factors (always comes in pairs) 60 miles/1 hr or 1 hr/ 60 miles. Essential course topic that allows manipulation of numbers and units: used when converting a given result from one system of units to another o. Identify the known or given quantity (both value and units) and the units that we would like to convert to ii. iii. Multiply the given quantity by one or more conversion factors in such a manner that the unwanted original units are canceled leaving only the desired units. Perform the mathematical operations indicated by the conversion factor setup o. An iron sample has a mass of 4. 50lb. Conversion factors: 1kg = 2. 2046lbs; 1kg = 1000g.