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
Equal masses of SO2 and O2 are placed in a flask at STP choose the correct statement....When the same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide, the rat...The mass of CO2 that must be mixed with 20 g of oxygen such that 27 ml of a sample of the resulting mixture would contai...An unknown oxide of manganese is reacted with carbon to form manganese metal and CO2. Exactly 31.6 g of the oxide, MnxOy...Some bottles of colourless liquids were being labelled when the technicians accidentally mixed them up and lost track of...