# At 27°C, 58.5g of sodium chloride is…

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### How does sodium chloride (NaCl) dissolve in water?

How does sodium chloride (NaCl) dis...
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## At 27°C, 58.5g of sodium chloride is present in 250cm^3 of a solution. The solubility of sodium chloride at this temperature is?

( molar mass of sodium chloride = 111.0 g/mol )

A

## SOLUTION…

In this question, we are required to find the molar solubility.

### Data given:

Mass of sodium chloride = 58.5g

Volume of solution = 250 cm-cube = 250/1000 = 0.25 dm-cube

Molar mass of sodium chloride = 111 g per mol

Molar solubility = mass solubility/molar mass

But mass solubility = mass of sodium chloride/volume of solution

Mass solubility = 58.5/0.25 = 234 g/dm-cube

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Finally, Molar solubility = 234/111 = 2.11 mol/dm-cube

### Now for the right answer to the above question:

1. Option A is correct.
2. Option B is incorrect.
3. C is incorrect.
4. D is not the correct answer.