12HНеHydrogenTHE PERIODIC TABLE OF THE ELEMENTSHelium1.01Group 2Group 13/38 Group 14/48 Group 15/SB Group 16/68 Group 17/784.0048.10LiВеNeLithiumBerylliumBoronCarbonNitrogenFluorineNeon啡6.949.0110.8112.0114.0116.0019.0020.181112131415161718NaMgAlArSodiumMagnesiumAluminumSiliconPhosphorusSulfurChlorineArgon22.9924.30Group 3Group 4Group 5Group 6Group 7Group 8Group 9Group 10Group 11Group 1226.9828.0930.9732.0735.45192021222324252627282930313233343536KrPotassiumCalciumScandiumTitaniumVanadiumChromiumManganeseIronCobaltNickelCopperZincGalliumGermaniuArsenicSeleniumBrominKrypton39.1040.0844.9647.8750.9452.0054.9455.8458.9358.6963.5565.3969.7274.9278.9679.90373839404142434445464748495051525354RbNbNiobium Molybdenum TechnetiumМоRhХеRubidiumStrontiumYttriumZirconiumRutheniumRhodiumPalladiumSilverCadmiumIndiumAntimonyTelluriumlodineХепоп87.6288.9191.2292.9195.9498.00101.07102.91106.42107.87112.41114.82118.71121.76127.60126.90131.29555671727374757677787980818283848586ТаLuLutethum137.33 174.9CsВаIrHgRnCesiumBariumHalfniumTantaliumTungstenRheniumOsmiumIridiumPlatinumGoldMercuryThalliumBismuthPoloniumAstatineRadon132.91178.49180.95183.84186.21190.23192.22195.08196.97200.59204.38207.20208.98209.00210.00222.008788103104105106107108109110111112113114115116117118DbSgMtNhMcMoscovium LivenOgFrancumLawrencium Ruthe261.00262.00Dubnium SeaborgiumMeitneriumRoentgenium Copernicium Nihoniumorium TennessineOganesson223.00226.00262.00263.00264.00269.00266.00271.00272.00277.00284.00289.00288.00293.00294.00294.005758596061626364656667686970LanthanideLaCePmNdPraseodymium Neodymium Promethium SamariumPrSmGdTbDyYbSeriekLanthanumEuropium GadoliniumCeriumTerbiumDysprosiumHolmiumErbiumThuliumYtterbium138.91140.12140.91144.24145.00150.36151.96200.59158.93162.5164.93167.26168.93173.048990919293949596979899100101102AcThPaNpUranium Neptunium PlutoniumPuAmCmBkNoActhideSerieActiniumThoriumProtactiniumAmericiumCuriumBerkeliumCaliforniumEinsteiniumFermiumMendeleviumNobelium227.00232.04231.04238.03237.00244.00243.00247.00251.00252.00257.00258.00259.00Period 7Period 5Period 4Period 3Period 2Period 19 pojad #12NaCl → 2Na + 1c1,Problem: How many grams of NaCl is needed to produce 6.42gNa?You will need the molar mass of Na (known) and NaCl (unknown)!MM Na =22.99 g/molMM of NaCl=58.44 g/molLet's solve!1/Molar massMolar ratioMolar massKnown!6.42 g Na1 mol2 mol NaCl 58.44 gNa32.6322.99gNa1 mol Na1 mol Na%23

The given chemical equation is: 2NaCl = 2Na + Cl2 So, to produce 2 mol of Na 2 mol of NaCl is needed…

2Nacl → 2Na + 1cl, Problem: How many grams of NaCl is needed to produce 6.42g Na? You will need the molar mass of Na (known) and NaCl (unknown)! MM Na = 22.99 g/mol MM of Nacl= 58.44 g/mol Let's solve! 1/Molar mass Molar ratio Molar mass Known! 6.42 g Na 1 mol 2 mol NaCl 58.44 gNa 32.63 22.99gNa 1 mol Na 1 mol Na

2Nacl → 2Na + 1cl, Problem: How many grams of NaCl is needed to produce 6.42g Na? You will need the molar mass of Na (known) and NaCl (unknown)! MM Na = 22.99 g/mol MM of Nacl= 58.44 g/mol Let's solve! 1/Molar mass Molar ratio Molar mass Known! 6.42 g Na 1 mol 2 mol NaCl 58.44 gNa 32.63 22.99gNa 1 mol Na 1 mol Na

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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