Mole ConceptHard
Question
A polystyrene of formula Br3C6H2(C8H8) n was prepared by heating styrene with tribromobenzyl peroxide in the absence of air. It was found to contain 10.46% bromine by mass. The value of n is (Br = 80)
Options
A.20
B.21
C.19
D.22
Solution
Detailed solution available for registered users.
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
The distribution of molecular kinetic energy at two temperatures is as shown in the following graph:Which of the followi...H3PO4 (98 g mol-1) is 98% by mass of solution. If the density is 1.8 gm/ml, the molarity is...V1 ml of unknown gas (A) + V2 ml of O2 → (V1 + V2) ml of CO2. Gas ‘A’ may be...Equal volume of 0.1M NaCl and 0.1M FeCl2 are mixed with no change in volume due to mixing. Which of the following will b...Hydrazine N2H4 (used as a fuel in rocket system) can be produced according to the following reaction.ClNH2 + 2NH3 → N2H4...