1. Honors Chemistry Unit 7: Moles & Formulas Do Now Exercises

2. Do Now: Mon (1/7/13) Find & correct the mistakes in the formulas.
a. Calcium chloride CaCl
b. Lithium nitrate Li3N
c. Iron (III) oxide Al3O2
Find & correct the mistakes in the names.
a. MgO magnesium oxygen
b. CaCO3 calcium carbon oxide
c. N2O4 tetranitrogen dioxide
Goal: Review & Practice Semester 1 concepts.
Do Ester lab

3. Goal: Discover the chemical meaning of “mole.”
Do Now: Tues (1/8/13)
Pass your quiz!!!
Goal: Discover the chemical meaning of “mole.”

4. Do Now: Wed (1/9/13)
*You must SHOW WORK with UNITS to receive credit for completing this Do Now.
1. How many moles are in 3.24 x molecules of CO2?
2. How many atoms are in 3.50 moles of sodium?
Goal: Use the mole concept to calculate mass and number of particles for different substances.
Explore the concept of percent composition, empirical formula and molecular formulas.

5. Do Now: Thurs (1/10/13) What is a (chemical) mole?
Using words (or chart or diagram or picture) relate mole with molar mass and Avogadro’s number.
Goal: Using experimental analysis, determine the empirical formula of a compound.

6. Do Now: Fri (1/11/13) Ch.6 problem, #117 in text – p. 201
Goal: Discover the various types of reactions.

7. Isopropyl alcohol (rubbing alcohol) is composed of C, H and O
Isopropyl alcohol (rubbing alcohol) is composed of C, H and O. Combustion of 0.255g of isopropyl alcohol produces 0.561g of CO2 and 0.306g H2O. Determine the empirical formula.