NEET Class neet Answered
please answer this
Asked by Prashant DIGHE | 06 Jan, 2020, 09:56: PM
Expert Answer
Option (1) is correct.
Given:
Density = 1.07 g/ml
Molarity = 2.03 M
Molar mass of acetic acid = 60.
We know,
Molarity
Mass of solution = 1.07 kg
No. of moles = 2.03 mole
As molarity is no. of moles of solute in 1000 ml of solution.
No. of moles 
Mass of solute = No. of moles × Molar mass
= 2.03 × 60
Mass of solute (CH3COOH) = 121.8 gm
Mass of solvent = 1070 − 121.8 = 948.2 gm
= 0.9482 kg
Molality 
= 2.15 m
Molality ≈ 2.2 m
Answered by Varsha | 07 Jan, 2020, 01:12: PM
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