sgray4307 sgray4307
  • 01-08-2018
  • Chemistry
contestada

What is the solubility of 2 kg of potassium chloride dissolved into 750 cm3 of water

Respuesta :

tallinn tallinn
  • 10-08-2018

Answer:- Solubility of KCl solution is 0.36 M.

Solution:- 2 kg of KCl dissolved into [tex]750cm^3[/tex] .

[tex]1cm^3[/tex] = 1 mL

So, [tex]750cm^3[/tex] = 750 mL

1000 mL = 1 L

So, 750 mL = 0.75 L

1 kg = 1000 g

So, 2 kg of KCl = 2000 g of KCl

Molar mass of KCl is 74.55 gram per mol.

So, moles of KCl = [tex]2000g(\frac{1mol}{74.55g})[/tex]

= 26.8 mol

Molar solubility of KCl = [tex]\frac{moles of KCl}{Liter of solution}[/tex]

molar solubility of KCl = [tex]\frac{26.8 mol}{0.75 L}[/tex]

molar solubility of KCl = 0.36 M

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