Question

11.
The mole fraction NaOH in the aqueous
solution is 0.001. The molarity of NaOH
solution will be
(1) 0.056 M
(2) 55.55 M
(3) 0.001 M
(4) Data is insufficient.​

Answer 1

Answer:

By definision, molality are the moles of solute in Kg solvent.

So, 1 m of NaOH means 1 moles of NaOH for every Kg water.

The mole of water = 1000 gH2O/ 18 g/mol = 55.56 mols water

XNaOH (mol fraction of NaOH) = 1 / ( 1 + 55.56) = 0.0176

so the answer is (4)

Explanation:

Answer 2

Answer:

Answer is (1): 0.056M

Explanation:

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