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Grade: 11

                        

a solution of 36% of water and 64% acetaldehyde by mass.calculate the mole fraction of acetaldehyde

8 years ago

Answers : (5)

akash luckey aggara
33 Points
							

8/19

 

8 years ago
Nishant Sharma
18 Points
							

Let take the solution of 100 gram

Oxygen =36gram

Acetaldehyde = 64gram 

noxygen=36/18=2mole=n1

acetaldehyde=64/44=1.5=n2

Mole fraction of acetaldehyde= n2/(n1+n2)=0.41

8 years ago
TANAYRAJ SINGH CHOUHAN
65 Points
							

Let us consider 100gm of solution

So the solution contains 36gm water and 64gm acetaldehyde(C2H4O)

So no. of moles of water = 36/18 = 2moles

& no. of moles of acetaldehyde = 64/44 = 16/11 moles

Now mole fraction of water = 2/(2+16/11) = 2*11/38 = 11/19

& mole fraction of acetaldehyde = 16*11/11*38 = 8/19

8 years ago
dattu savili
31 Points
							

acetaldehyde mole fraction is 0.64

8 years ago
GOPICHAND BODA
34 Points
							

mole fraction of CH3COOH is 0.347

8 years ago
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