Question

Please answer the question please

Answer 1

YE LO AAPKA ANSWER

Explanation:

1. No. of moles of ethanol= $\frac{10}{46}$ = 0.2196 ≈ 0.22

No. of moles of water = $\frac{50}{18}$ ≈ 2.78

now, formula of mole fraction=  $\frac{N_a }{N_a+N_b}$

Na= 0.22

Nb= 2.78

mole fraction of ethanol= $\frac{0.22}{3}$ ≈ 0.0733

molality= no of moles of solvent/mass of solvent in kilograms

now, molality =  $\frac{0.22}{0.05}$ = 4.4 molal

2. molarity= no. of moles of solute / volume of solution in litres

no. of moles of Sulphuric acid = $\frac{5.5}{98}$ ≈ 0.056

volume of the solution = $\frac{300}{1000}$ = 0.3

molarity= $\frac{0.056}{0.3}$ ≈ 0.187 M

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