Density of a 2.05 M solution of acetic acidin water is 1.02 g/mL. The

1.	Density of a 2.05 M solution of acetic acidin water is 1.02 g/mL. The molality of thesolution is1) 1.14 mol kg2) 3.28 mol kg3) 2.28 mol kg4) 0.44 mol kg
Answer» Weight of acetic acid =2.05×60=123 Weight of the solution =1000×1.02=1020∴∴Weight of water=(1020−123)=897g ∴∴Molality =2.05×1000/897=2.285 this question answer is option 2.28 m kg 1-

Density of a 2.05 M solution of acetic acidin water is 1.02 g/mL. The molality of thesolution is1) 1.14 mol kg2) 3.28 mol kg3) 2.28 mol kg4) 0.44 mol kg

Answer»

Weight of acetic acid =2.05×60=123

Weight of the solution =1000×1.02=1020∴∴Weight of water=(1020−123)=897g

∴∴Molality =2.05×1000/897=2.285

this question answer is option 2.28 m kg 1-