Question

1 molal solution of sodium chloride has a density of 1.21 g/ml.the molarity of solution

Answer 1

Answer:

1 molal NaCl solution = 1.144 M NaCl solution

Explanation:

Given

Molality of NaCl = 1 molal

Density = 1.21 g/ml

Molarity of NaCl solution =??

Solution

As we know that molal solution can be defined as 1 mole of solute in 1kg of solvent

and 1 mole of NaCl contains 58.5 g of NaCl

therefore, total mass of solution is 1058.8 g

thus, volume of solution

volume of solution  = mass/ density

volume of solution  = 1058.8/ 1.21

volume of solution  = 874.8 ml or 0.874 L

Molarity

Molarity =  1 mole of solute / Volume of solution

Molarity = 1/ 0.874

Molarity = 1.144 M

1 molal NaCl solution = 1.144 M NaCl solution

Answer 2

Answer:

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Explanation:

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