Home
Class 12
CHEMISTRY
Calculate the molality of 1 M concerntra...

Calculate the molality of 1 M concerntrated solution of `NaNO_(3)` if density of solution=`1.25mL^(-1)`

Text Solution

Verified by Experts

Calculation of mass of solvent
`"Density of solution"= "Voume of the solution"xx"Density"`
`= (1000mLxx1.25g mL^(-1))=1250g`
Mass of `NaNO_(3)` in 1 M solution `=23+14+3xx16=85g`
Mass of solvent present = (1250-85)g=1165g=1.65kg
Calculation of molality of solution
Molality (m)`=("No.of gram moles of" NaNO_(3))/("Mass of solvent in kg")`=
`((1mol))/((1.165kg))=0.858 "mol kg"^(-1)=0.858m`
Promotional Banner

Similar Questions

Explore conceptually related problems

Calculate the molality of 1L solution of 80% H_2SO_4 (w/V) given that the density of the solution is 1.80 g mL^-1 .

Calculate the molality of 1 L solution of 93% H_(2)SO_(4) (Weight/volume) The density of the solution is 1.84 g .

Calculate the molality (m) of 3 M solution of NaCl whose density is 1.25 g mL^(-1) .

Calculate the molarity of 3.3molal solution of KCl whose density is 1.28 g//ml

Calculate the molality of 1 litre solution of 93% H_(2)SO_(4) ("weight"//"volume") . The density of solution is 1.84 g mL^(-1) .