Question

0.40 NaOH is dissolved in 50 mL of aqueous solution. calculate its maolarity​

Answer 1

Answer:

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Answer 2

Answer:

0.2 MOLAR.

Explanation:

MASS OF SOLUTE = 0.40 g ( IF I AM CORRECT AS NOT MENTIONED)

MOLAR MASS OF SODIUM HYDROXIDE=  0.40 g

SO NO. OF MOLE = 1/100 MOLE

VOLUME OF SOLUTION= 50 ML= 50/1000 L=1/20 L

SO MOLARITY= MOLES OF SOLUTE / VOLUME OF SOLUTION IN LITRE

=1/100/1/20= 1/5 MOLAR.= 0.2 MOLAR.