The amount of weight percent sulfur.
Answer to Problem 81AAP
The amount of weight percent sulfur is
Explanation of Solution
Show the chemical structure bonding of polyacrylonitrile and polybutadiene as:
Express the weight per cent of sulfur.
Here, the molar mass of the sulfur is
Calculate the mass of sulfur at 22%.
Here, the number of mole in butadiene is
Calculate the copolymer total mass.
Here, the molar mass of the polybutadlene is
Conclusion:
The average molecular mass of the
The average molecular mass of the polybutadlene is
The average molecular mass of the sulfur is
Substitute
Calculate the fraction of butadlene.
Calculate the number of moles of butadlene using 200 kg of copolymer.
Substitute 3096.3 mol for mole butadlene and
Substitute 21,798 g for
Thus, the amount of weight percent sulfur is
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