1. Single Mole Map Conversions (AKA Mole Relationships) 12/5/11

2. Nomenclature Review: Write the formulas for the following compounds. Use the green, blue, and orange boxes on the back of your PT. The short line in front of the name is for I, C, or H. Be careful! Formulas must be written 100% correctly in order to calculate numerical data from them! I H C I I I H C C I I H I C I H FeCO 3 C2H4C2H4 N2O5N2O5 Na 3 PO 4 Zr(C 2 O 4 ) 2 AlPO 3 C 8 H 14 Cl 2 SiF 4 Cd 3 N 2 Sn(ClO) 4 C 6 H 14 V(OH) 5 S 3 Cl 9 K2S2O3K2S2O3 C4H8C4H8

3.  mole map = a visual representation of the relationships that exist between the units of mass, volume, number of particles (formula units, molecules), and moles.  the mole map is used just like any other map—stay on the right side of the road!  “single” mole map relationships use only one side of the mole map (don’t cross the mole ratio bridge). We will use both sides later on.  a conversion table is used to contain the fractions.

4.  simply string together the fractions on the right-hand side of the road as you convert from your starting unit to your ending unit.  Steps to follow: Step 1: write your starting information (with a number, unit, and formula) next to the vertical line of the 1st step of a conversion table Ex1: Convert 23.5 g of sodium chloride (____) into moles.

5.  Steps to follow: Step 1: write your starting information (with a number, unit, and formula) next to the vertical line of the 1st step of a conversion table. Step 2: trace the path from your starting unit to your desired unit on the mole map. The number of roads between those units is the number of steps you need in your conversion table. 23.5 g NaCl NaCl =

6. Step 3: fill in each step in your conversion table with the corresponding relationship (fraction) provided on the mole map (every step should have a number, unit, and formula). NOTE: if molar mass (MM) is used in the fraction, YOU have to calculate it! 23.5 g NaCl NaCl = 1 mol NaCl ____ g NaCl Na = 1 (22.99) = 22.99 Cl = 1 (35.45) = 35.45 58.44

7. Step 4: calculate your problem by entering your starting information first, then multiplying numbers on the top and dividing numbers on the bottom. Box your answer (with— you guessed it!—a number, unit, and formula)! 23.5 g NaCl NaCl = 1 mol NaCl ____ g NaCl 58.44 0.40 mol NaCl 23.5  58.44 = 0.402121834

8. 500 g H 2 O H2OH2O = ____ g H 2 O 1 mol H 2 O 6.022  10 23 molec. H 2 O SCIENTIFIC NOTATION 500  18.02  6.022 EE 23 = 1.67092 E 25 1.67  10 25 molec. H 2 O H = 2 ( 1.01 ) = 2.02 O = 1 (16.00) = 16.00 18.02

9. = 6.022  10 23 f.u. Co 3 N 2 2.88 EE 22  6.022 EE 23  22.4 = 1.07272 1 mol Co 3 N 2 2.88  10 22 f.u. Co 3 N 2 Co 3 N 2 1 mol Co 3 N 2 22.4 L Co 3 N 2 1.07 L Co 3 N 2

10. = 6.022  10 23 molec. C 3 H 8 5.67  6.022 EE 23  8 = 2.7315792 E 25 1 mol C 3 H 8 5.67 mol C 3 H 8 C3H8C3H8 1 molec. C 3 H 8 8 atoms H 2.73  10 25 atoms H H