1. Opener 1/11 Balance the following:
Write a chemical equation from the following then balance:

2. Chemical Calculations
Calculate from mole to mole and mass to mass

3. Going from Mole to Mole!!

4. Practice Problems
If you have 2 moles of HCl how many moles do you have of H2O?
If you have 1.5 moles of Pb(OH)2 how many moles do you have of H2O? 2 2

5. Mass to Mass Calculations2 2
Mass to Mass Calculations
How can you go from the mass of one substance to the mass of another using a balanced chemical equation?
Example: 62 grams of HCl reacts to produce how many grams of water (H2O)?
STEP 1 Mass of Substance A to moles A (Divide by the molar mass)
STEP 2 Moles of Substance A to moles of Substance B (Mole ratio)
STEP 3 Moles of Substance B to mass of substance B (Multiply by the molar mass)

6. Practice Problems
If you react 36.8 grams of HCl how many grams could you make of PbCl2?
Step 1. grams HCl moles HCl
Step 2. moles HCl moles PbCl2
Step 3. moles PbCl2  grams PbCl2
If you made 292 grams of PbCl2 how much HCl did you start with? 2 2

7. 1/12 Opener
Balance the following equation: If you have 3.2 moles of the reactant C8H18 how many moles will be produced of water (H2O)?

8. Test Modification _______NaCl + _______F2  _____NaF + _____Cl2
Question 3
If you have Version A:
_______NaCl + _______F2  _____NaF + _____Cl2
If you have Version B:
_____KBr + _____I2 _______KI + _______Br2