the molality of 1 M solution of sodium nitrate is 0.8 mol/kg .determine the density of the solution.
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use firmula if calculating the density
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Answer : The density of solution is, 0.1062 g/ml
Solution : Given,
Molarity of solution = 1 M = 1 mole/L
Molality of solution = 0.8 mole/Kg
Molar mass of sodium nitrate = 84.99 g/mole
The relation between the molarity, molality and the density of the solution is,
where,
d = density of solution
m = molality of solution
M = molarity of solution
= molar mass of solute, sodium nitrate
Now put all the given values in the above formula, we get the density of solution.
Therefore, the density of solution is, 0.1062 g/ml
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