1.
Write the balanced equation for the combustion of ethyl alcohol,
C2H5OH. If
3.662 moles of ethyl alcohol are burned, how many moles of water can be formed?
2. In
the reaction P4 + 5 O2 ® 2
P2O5,
how many moles of oxygen are consumed each time 0.500 mol of P2O5 is
formed?
3. In
the reaction in question 2 above, how many grams of diphosphorus pentoxide
could be formed from 0.34 moles of oxygen?
4.
How many grams of ammonia (NH3)
will be produced when 25.0 g of CaCN2 react with excess water in the reaction
below?
CaCN2 + 3 H2O
® CaCO3 +
2 NH3