The observed depression in freezing point of water for a particular solution in ` 0.093^(@) k ` calculate the concentration of the solution in molality Given that molal depression constant for water is ` 1.86 K KG mol ^(-1 ) `

Explanation

` Delta T _ f = 0.093^(@)C = 0.093K `
m =?
`K_f = 1.86 ^(@) C kg mol ^(-1)`
` Delta T_f = K_f .m `
` therefore " " m =" "(Delta T_f)/( K_f) =( 0.093K)/( 1.86 K kg mol ^(-1) ) `
` =0.05 mol kg ^(-1 ) =0.05m `