CH 204K 1st Edition Lecture 22 Outline of Last Lecture I. CarbonOutline of Current Lecture II. PhotosynthesisIII. Fossil FuelsIV. MoleCurrent LecturePhotosynthesis- Reason why we need trees- Carbon dioxide used in photosynthesis comes from the atmosphere- C-14 to C-12 ratio is constant- All LIVE plants and animals have same C-14 to C-12 ratio in live cells as the atmosphereFossil Fuels- Remains of ancient plants- They are carbon reservoirs until burntMole- Bigger counting unit- Avogadro’s number= 6.022 x 1023- Symbol= NA- Same concept as a “dozen”- Mole is exactly the number of carbon-12 atoms in 12 g of pure carbon-12These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Mass number on periodic table= mass of ONE MOLE or atoms of the element- One mole of chlorine= Cl2 because it is a DIATOMIC ELEMENT (Br I N Cl H O
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