1. 1.A solution was prepared by dissolving 32.0g of KCl in 225 g of water. Expre

Question

1. 1.A solution was prepared by dissolving 32.0g of KCl in 225 g of water. Express your answer with the appropriate units.

2.Calculate the mole fraction of the ionic species

KCl in the solution. Express the concentration numerically as a mole fraction in decimal form.

3.Calculate the molarity of KCl in the solution if the total volume of the solution is 239 mL.Express your answer with the appropriate units.

4.Calculate the molality of KCl in the solution.

Express your answer with the appropriate units.

Explanation / Answer

1. m% = (32/257)*100 = 12.4 %

2. NO. OF MOLES OF KCL = WT/GMW = 3274.5 = 0.43

NO. OF MOLES OF WATER = 225/18 = 12.5

MF OF KCL = 0.43/12.5+0.43= 0.033

3. MOLARITY = 0.43/0.239 = 1.78

4. MOLALITY = 0.43/0.225 = 1.91

The simplest way ....

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