L.C.P. Problems
Problem One:
a) The mass ratio of zinc reacted to zinc chloride
formed was determined in the lab to be 0.48/1.
If 14 g of zinc are dissolved in sufficient hydrochloric acid, what mass
of zinc chloride will be formed?
b) What mass of chlorine is bonded with the 14 g of
zinc?
a) The mass ratio of oxygen to hydrogen in water is
8/1. If 32 g of hydrogen are burned in
sufficient oxygen, what mass of oxygen is bonded to that hydrogen?
b) What mass of water results from this reaction?
a) The mass ratio of carbon to oxygen in the compound CO2
is 0.375/1. For 80g of carbon, what mass of oxygen is
needed for a complete reaction?
b) What mass of carbon dioxide will be formed?
Problem Four:
Below are various mixtures
of hydrogen and oxygen that will be ignited to form water. Determine for each mixture what gas, in what
quantity will remain after the reaction is over.
Vol Hydrogen(mL) Vol Oxygen(mL) Unused
a) 70 40 _____________
b) 30 15 _____________
c) 800 500 _____________
d) 17 5 _____________