Name ________________________ Mole Worksheet: moles ↔ particles The mole is a number equal to 602,000,000,000,000,000,000,000 or 6.02 x 1023 Solve the following problem to give you an idea of how large a number this is: How many dollars would each of the 7 billion (7,000,000,000) people of the world get if you distributed 1 mole of pennies to each of them? Converting moles to representative particles: Converting representative particles to moles: For all parts of # 1, 2, and 3, show your work on lined paper 1. Determine the number of representative particles in each of the following. A) 0.250 mol silver C) 35.4 mol CO2 B) 0.00856 mol NaCl D) 0.425 mol N2 2. Determine the number of moles in each of the following. A) 3.25 x 1020 atoms Pb C) 1.56 x 1023 formula units NaOH B) 4.96 x 1024 molecules glucose D) 1.25 x 1025 Cu atoms 3. Make the following conversions: A) 1.51 x 1015 atoms Si → mol Si C) 8.95 x 1025 molecules CCl4 → mol CCl4 B) 0.0425 mol NO2 → molecules NO2 D) 5.90 mol Ca → atoms Ca 4. How many moles of magnesium is 1.25 × 1023 atoms of magnesium? 5. Determine the number of atoms that are in 0.58 mol of Se. 6. How many moles of barium nitrate (BaNO3) contain 6.80 x 1024 formula units? 7. Determine the number of molecules that are in 1.25 moles of O2. 8. How many moles of magnesium bromide (MgBr2) is 5.38 x 1024 formula units? 9. Determine the number of formula units that are in 0.688 moles of AgNO3. 10.How many moles of ethane (C2H6) contain 8.46 x 1024 formula units? 11.Determine the number of formula units that are in 1.48 moles of NaF. 12.How many molecules are in 0.0125 moles of SiO2? 13.How many atoms are in 0.341 moles of Zn? 14.How many moles of Fe2O3 contain 7.25 x 1025 formula units?

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