If mole fraction of C2H5OH is 0.001, then its molality is (solvent is H20)
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Explanation:
mole fraction of C2H5OH=0.001
Mole fraction of H2O. =1-0.001=0.999
mass of H2O=0.999×18=17.982g=0.017982kg
molality of C2H5OH=mole fraction of C2H5OH/mass of H2O
=0.001/0.017982
=0.0556m
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