Chemistry Exam....(CHEM 419)
(THERMODYNAMICS OF POLICTICAL CHEMISTRY)
TIME ALLOWED: 72 Hours.
QUESTION
1. In a reaction involving 72g of Buharium
sulphate
and 53g of Janatine carbonate, 2015g of
presidium
electorate acid was produced.
i. Calculate the percentage purity of the
product,and
assuming the reaction took place under Jega
standard condition.
ii. Assuming that 3g of Ma'azuim Chloride was
added
usingGoodluckium solution, calculate the mass
of
Buharium sulphate that would have been
needed for
the reaction to be WINothermic?
iii. What is the colour of Goodluckium Chloride
before
and after free and fair reaction?
iv. Calculate the molecular weight of the
reactants
and products with respect to their places on the
electrochemicalseries of quality leadership and
state
which is stronger and why.
v. Using their molecular numbers, prove that
Jonatine
Chloride is weak and would need more INECium
solution from JEGAnium nitrate to be able to
precipitate Buharium from the reaction.
vi. Why is it that the solution of RIGium
produced
can't react with APCium Nitrate but would react
violently under PDPium Jonite acid?
NB : Use of Four Rigging Table is not allowed in
the
exam Hall.