Question

Hey please explain & solve this question!

Answer 1

Answer:

0.043 {APPROX}

Explanation:

Mass of solute = 2.5

Moles of water = 1000/ 18 = 55.55

{ 1000g of mole has 18 water}

So, Mole fraction =

Moles of solute/Total moles

= 2.5/58.06

= 0.043 {Approx}

Answer 2

Answer:

According to me, 2.5 molal aqueous solution means 2.5 moles of solute .

Moles of solute = 2.5 .

Moles of water = 1000/18 = 55.55 .

= (Moles of solute / Moles of solute + solvent. )

= 0.043

Hope it helps.

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