Question

25g of NaCl is dissolved in 5000 ml of water. Find the molality of the resulting solution

Answer 1

Answer:

• Mass of NaCl dissolved in solvent = 25 gram
• Volume of solvent = 500 ml. = 0.5 litre
• Molarity = ??

• here NaCl is solute ans water is solvent

• Molarity (M) = no. of moles of solute / volume of solution in litre
• Molarity (M) = 0.42/ 0.5
• Molarity (M) = 0.84 mol/ litre

Explanation:

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