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Unit Conversion Workout - Part II

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Tatiana Dyakina

The set of unit conversion practice problems created for Chemistry students. In my classroom it went in conjunction with aluminum foil lab where students had to determine how many atoms thick was a sample of aluminum foil. The lab was revisiting the concept of density and required conversion of atomic height from pm to cm. So, we had a practical reason to practice conversions.

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Convert from one unit to another: Use your reference tables to find the atomic radius and density of elements. Example (please, do the following conversions similar way) Convert the height of Fe (iron) atoms to cm 2.48 x 10-8 cm Fe = 124 pm x 2 = 248 pm Convert the height of K (potassium) atoms to cm ________cm Convert the height of Na (sodium) atoms to m ________m Convert the height of Ne (neon) atoms to dm ________dm Convert the height of Cu (copper)atoms to nm ________ nm
Convert the height of Mn (manganese) atoms to km ________km Example (please, do the following conversions similar way) Convert the density of Fe (iron) to kg/cm3 0.00787 kg/cm3 d (Fe) = 7.87 g/cm3 Convert the density of K (potassium)to kg/cm3 _________kg/cm3 Convert the density of Na (sodium) to kg/L _________ kg/L Convert the density of Ne (neon) to g/L _________ g/L
Convert the density of Cu (copper)to kg/L _________ kg/L Convert the density of Mn (manganese) to g/cm3 _________ g/mL

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Unit Conversion Workout - Part II

  • 1. Convert from one unit to another: Use your reference tables to find the atomic radius and density of elements. Example (please, do the following conversions similar way) Convert the height of Fe (iron) atoms to cm 2.48 x 10-8 cm Fe = 124 pm x 2 = 248 pm Convert the height of K (potassium) atoms to cm ________cm Convert the height of Na (sodium) atoms to m ________m Convert the height of Ne (neon) atoms to dm ________dm Convert the height of Cu (copper)atoms to nm ________ nm
  • 2. Convert the height of Mn (manganese) atoms to km ________km Example (please, do the following conversions similar way) Convert the density of Fe (iron) to kg/cm3 0.00787 kg/cm3 d (Fe) = 7.87 g/cm3 Convert the density of K (potassium)to kg/cm3 _________kg/cm3 Convert the density of Na (sodium) to kg/L _________ kg/L Convert the density of Ne (neon) to g/L _________ g/L
  • 3. Convert the density of Cu (copper)to kg/L _________ kg/L Convert the density of Mn (manganese) to g/cm3 _________ g/mL