Chem notes Updated
Metric System: Deci 1/10; Centi 1/100; milli 1/1000; kilo 1000 Length: 2.5cm-1 inch Standard Unit (SU) Meter Mass: 454 gram – 1 lb; 29 gram- 1 ounce SU gram Volume: 1 L- 1.06 quarts; 29 mil- 1 fl ounce SU Liter Temperature: CF F=9/5C+32 F frez: 32 boil: 212 dif 180 (9/5=180/100) FC C=5/9(F-32) C frez: 0 boil: 100 dif 100 CK K=C+273 Kelvin only for gases ■ heat 1 degree expands 1/273 of volume o 273expansion/ contraction of gas The Atmosphere as a mixture and the greenhouse affect: 95% of the green house effect is due to H2O vapor and 99.999% of it is natural in origin 5% of the green house effect is due to CO2, CH4 and NOx with CO2 being the most prevalent (99.4% by volume of the 5%) the other gases trap more heat CO2 is responsible for 3.6% of the 5% About 97% of the atmospheric CH2 content is natural in origin. We contribute about 3% o This means that .11% of the green house effect (3% of 3.6%) is due to human release of CO2 o 99.89% of the green house effect has nothing to do with CO2 release from human activity 1/29/09 3 Laws of Chemistry 1. Lavoisier—conservation of mass matter can be neither created nor destro
Written for
- Institution
-
George Mason University
- Course
-
CHEM 211 (CHEM211)
Document information
- Uploaded on
- May 29, 2021
- Number of pages
- 24
- Written in
- 2020/2021
- Type
- Exam (elaborations)
- Contains
- Questions & answers
Subjects
-
chemistry the study of matter matter is anything that exists solid liguid or gaseous state subdivided into 3 types 1 elements simplist fundamental unit of a substance that can exist there 92