Answer:
The weight-average molar mass of polystyrene is 134,160 g/mol.
Explanation:
Molar mass of the monomer styrene ,
, M=104 g/mol
Given , number average molar mass of the polymer , M'= 89,440 g/mol
Degree of polymerization = n

The weight-average molar mass = 
Molar mass dispersity is ratio of weight-average molar mass to the number average molar mass of the polymer.



The weight-average molar mass of polystyrene is 134,160 g/mol.
It is an open series circuit and this is why:
its obvious its a series circuit because all the symbols are in a straight rectangle.
its an open circuit because an open circuit has something that doesn't allow the electrons to flow all the way. and the thing blocking the electrons it the switch which is open, (off).
Hope this helped!! sorry its late!!
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Answer:
Approximately
.
Explanation:
Nitrogen
reacts with hydrogen
at a
ratio to produce ammonia
:
.
The ratio between the coefficient of
and the coefficient of
is:
.
Under the ideal gas assumptions, the same ratio would apply to the volume of
and
in this reaction:
.
.
Given that
:
.
(Rounded to
significant figures.)
Answer:
The answer is 4778.4 cm (cubed)
Explanation:
V = (πr(squared)) x (h/3)
V = (π x 13(squared)) x (27/3)
V = 530.9291585 x 9
V = 4778.4