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Chem 1305 Week 3

by: lugarte2 Notetaker

Chem 1305 Week 3 Chem 1305

lugarte2 Notetaker
GPA 4.0

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About this Document

These notes cover last week's lecture
Dr. Geoffrey Saupe
Class Notes
General Chemistry
25 ?




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This 3 page Class Notes was uploaded by lugarte2 Notetaker on Sunday September 11, 2016. The Class Notes belongs to Chem 1305 at University of Texas at El Paso taught by Dr. Geoffrey Saupe in Fall 2016. Since its upload, it has received 46 views.


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Date Created: 09/11/16
CHEMISTRY 1305 WEEK 3 PERIODIC TABLE Main Group Main Group H H e N Li Be B C N O F e N M Al Si P S Cl a g Ar K Ca G G A Se Br a e s Kr R Sr In Sn Sb Te I X b e Cs Ba Ti P Bi Po At R b n Fr Ra G G G G G G G 1 2 3 4 5 6 7 G8 + Transition metals + -4 +2 + -3 -2 -1 1 3 4 Alkali Alkaline earth Metalloids Halogens Noble gases Non metals NAMING ACIDS BINARY  Hydrogen +nonmetal  Prefix–hydro ,+anion +“ic” HFhydrofluoricacid HClhydrochloricacid OXIACIDS  Hydrogen +polyatomicion  “-ate”“-ic”  “-ite”“-ous” HClO 3 chloric acid HClOhypochlorousacid Rememberrule of7 +O–“per”- “ate” Reference #- “-ate” -O- “-ite” -O–“hypo”- “-ite” BASES  Metalsfromgroup IandII+hydroxide  NaOHSodiumHydroxide COMPOUNDS WITH TRANSITION METALS  Sametransition metalshave different charges; the name ofthecompoundcantelluswhich charge the elementhas +2 -2  Iron (II)Oxide Fe +O =FeO AVOGADRO’S NUMBER  Toknow thenumber ofatomswe use Avogadro’sNumber(1mole =6.022x10 atoms) 23 1 ????????????????  ????????????????????( 23 ) = ???????????????????? 6.022????10 ????????????????????  1mole ofan element=atomicmass Atomic Number 17 Cl 35 Atomic mass  Toconvert frommolestogramsyou use ???????????????????? ???????? ????ℎ???? ????????????????????????????  Moles( ???????????????????? ) = ????????????????????  Togetthemasspercentage ofan element  Mass percentage = ( ???????????????? ???????? ????ℎ???? ????????????????????)???? 100% ???????????????????? ????????????????


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