Procaine hydrochloride ( = 272.77 g/mol) is used as a local anesthetic. calculate the molarity of a 4.666 m solution which has a density of 1.1066 g/ml.

Answer : The molarity of solution will be, 2.27 mole/L

Explanation :

The relation between the molarity, molality and the density of the solution is,

where,

d = density of solution  = 1.1066 g/ml

m = molality of solution  = 4.666 m

M = molarity of solution  = ?

= molar mass of solute (Procaine hydrochloride) = 272.77 g/mole

Now put all the given values in the above formula, we get:

Therefore, the molarity of solution will be, 2.27 mole/L

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