MOLE PROBLEMS ANSWERS - Worksheet Mole Problems Name KEY Part 1 Molar Mass Use the periodic table to find the molar masses of the following HCl K2CO3

MOLE PROBLEMS ANSWERS - Worksheet Mole Problems Name KEY...

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Worksheet: Mole Problems Name______________CHEMISTRY: A Study of Matter © 2004, GPB 7.6aKEY Part 1: Molar MassUse the periodic table to find the molar masses of the following. HCl K2COCa(OH)2Na3PO4Part 2: Mole ConversionsWork each of the following problems. SHOW ALL WORK. 1.How many atoms are in 6.2 moles of aluminum? 2(39.1 g/mol) + 12.0 g/mol + 3(16.0 g/mol)= 138.2 g/mol40.1 g/mol + 2(16.0 g/mol) + 2(1.0 g/mol) = 74.1 g/mol3(23.0 g/mol) + 31.0 g/mol + 4(16.0 g/mol) = 164.0 g/mol32.Convert 5.3 x 1025molecules of CO2to moles. ? moles CO3.How many formula units of sodium acetate are in 0.87 moles of sodium acetate? 4.Convert 3.55 moles NaCl to formula units. 101.0 g/mol + 35.5 g/mol = 36.5 g/mol2(39.1 g/mol) + 12.0 g/mol + 3(16.0 g/mol)= 138.2 g/mol40.1 g/mol + 2(16.0 g/mol) + 2(1.0 g/mol) = 74.1 g/mol3(23.0 g/mol) + 31.0 g/mol + 4(16.0 g/mol) = 164.0 g/mol
CHEMISTRY: A Study of Matter © 2004, GPB 7.6b5.Convert 3.00 moles As2

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