Molar Mass-1 - 18 atoms of gold 7 How many moles of carbon...

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CHEM 130 A.Bazell Fall 2007 MolarMassSTUDENT.doc 8/28/07 Atomic Mass, Molar Mass & the Mole Worksheet 1) What is the mass, in amu, of 2500 atoms of carbon? 2) How many zinc atoms are there in 5.00 x 10 19 amu? 3) How many moles of helium atoms are there in 221,000 helium atoms? 4) How many atoms are there in 0.98 moles of iron? 5) How many moles of cesium are in 66.45 g of cesium? 6) What is the mass in g of 6.52 x 10
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Unformatted text preview: 18 atoms of gold? 7) How many moles of carbon trichlorofluorine, CCl 3 F, are there in 435.2 g? 8) How many grams of TNT, C 7 H 5 N 3 O 6 , are there in 0.665 moles? 9) How many moles are in 57.2 g of octane, C 8 H 18 ? 10) How many moles are in 0.44 g of nitric acid? 11) Determine the molar mass of copper(II) sulfate pentahydrate, CuSO 4 •5 H 2 O...
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