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Calculate the molarrity (in mol/L)of pure 1-bromobenzene and pure 2-chloro-2-methylpropane.

Calculate the molarrity (in mol/L)of pure 1-bromobenzene and pure 2-chloro-2-methylpropane.

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Answer #1

Here solute and solution are same

Let us calculate molairty of 1-bromobenzene

Let volume of the solution= 1 L

Desnity of bromobenzene = 1.5 g/mL = 1500 g/L

Mass of bromobenzene = density x volume = = 1500 g

molar mass of bromobenzene = 157 g/mol

moles = = 9.56 mol bromobenzene

Molarity = moles/L = 9.56 mol/1 L = 9.56 M

Similarily we can calculate molarity for 2-chloro-2-methylpropane

Volume of the solution be 1 L

density of 2-chloro-2-methylpropane= 0.851 g/mL =

mass of 2-chloro-2-methylpropane = 851 g

molar mass of 2-chloro-2-methylpropane = 92.57 g/mol

moles of 2-chloro-2-methylpropane = = 9.19 mol

Molarity of 2-chloro-2-methylpropane = moles/L = 9.19mol/1L = 9.19 M

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