Question

A mixture contains 80% of NaOH and 20% H₂O by weight, what is the mole fraction of NaOH?

a.

0.24

b.

0.42

c.

0.64

d.

0.78

Answer: (c).0.64

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Q. A mixture contains 80% of NaOH and 20% H₂O by weight, what is the mole fraction of NaOH?

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