Stoichiometry 2
Solve the
following:
1. What mass (in grams) of sodium oxide is produced by the reaction of 1.44
grams of sodium with
excess oxygen?
2. What mass (in kg) of water will be given off when 19.2 kg of octane (C8H18)
is burned
air?
3. How many grams of Al2(SO4)3
are need to react with KCl in order to produce 12.45
grams of
__ Al2(SO4)3 +
__ KCl à
__ AlCl3
+ __ K2SO4
4. Hydrogen gas can be
produced through the following unbalanced reaction.
__ Mg + __ HCl
à __ MgCl2
+ __ H2
a. What mass of HCl is consumed
by the reaction of 2.50 moles of magnesium?
b. What mass of each product is produced in part a.?
5. Acetylene gas, C2H2,
used in welding, produces an extremely hot flame when it burns in pure oxygen
according to the following unbalanced
reaction.
__ C2H2 + __ O2 à
__ CO2 + __ H2O
How many grams of each product are
produced when 2.50 x 104 grams of C2H2 burn
completely?
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