Question

What Is the mole fraction of a solute in 2.5 m aqueous solution?
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Answer 1

Answer:

2.5 molal aqueous solution means 2.5 moles of solute in 1 kg solvent,

⇒ moles of solute=2.5moles of water

=1000/18=55.55(1000/ H2O as water has

18)so mole fraction

= 2.5/(2.5+55.55)=(moles of solute/

moles of solute +solvent)=0.043(approx)

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