1. Bellringer
Stoichiometry Problems
1a) How many moles of chlorine gas (Cl2) would react with 5 moles of sodium (Na) according to the following chemical equation? (Balance equation.)
Na + Cl2 --> NaCl
1b) Using the equation (after it is balanced) above, determine the amount of product that can be produced from 24.7 g Na.
1c) How many molecules of product would be produced from 24.7g Na?
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2a) In the reaction 2C8H18 + 25O2 --> 16CO2 + 18 H2O, the ratio of volumes of O2 to CO2 is _________________.
2b) If 27.3g of C8H18 are combusted, what mass of water will be produced?
2c) How many molecules of CO2 will be produced?
2d) How many atoms of H are in 2 mol of C8H18?
2e) What is the percentage, by mass, of the H in 2 mol of C8H18?
2. Intro To Waves
3. Homework - find a science website and e-mail it to myscienceclass@yahoo.com
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