1a) How many moles of chlorine gas (Cl2) would react with 5 moles of sodium (Na)
according to the following chemical equation? (Balance equation.)
2Na + Cl2 -->
2.5 mol Cl2
1b) Using the equation (after it is balanced) above, determine the amount of
can be produced from 24.7 g Na.
62 g NaCl
1c) How many molecules of product would be produced from 24.7g Na?
E23 NaCl molecules
2a) In the reaction 2C8H18 + 25O2 --> 16CO2
+ 18 H2O, the ratio of volumes of O2 to
2b) If 27.3g of C8H18 are combusted, what mass of water
will be produced?
37.8 g H2O
2c) How many molecules of CO2 will be produced?
2d) How many atoms of H are in 2 mol of C8H18?
2.2 E25 atoms
2e) What is the percentage, by mass, of the H in 2 mol of C8H18?
1.37 E26 amu
2.2 E25 amu H