A mixture contains 9 gram each of H₂O and NaCl, what is the mole fraction of N

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A mixture contains 9 gram each of H₂O and NaCl, what is the mole fraction of NaCl?

Options:

A . 0.15

B . 0.23

C . 0.45

D . 0.64

Answer: Option B
Answer: (b).0.23

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