Question

calculate molirity of 4g causic soda dissolved in 200ml of solution​

Answer 1

molarity = moles /volume

= (4/40)/(200/1000)

= 1/50

= 0.02 M

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Answer 2

Answer:

Hey mate thanks for your question!

Step-by-step explanation:

Given to find molarity of solution of caustic soda[ NaOH ]

Molar mass of NaOH = 23 + 16 + 1 = 40 u

No. of moles of NaOH = 4/40 = 0.1 mol

Molarity of the solution = $\frac_{no. of moles of solute}{volume of solution in l}$

= 0.1 mol/ 0.2 l

= 0.5 mol/l

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