The concentration of NaOH solution in B beaker is 21.67M.
We can calculate the concentration of solution by using the below equation:
M₁V₁ = M₂V₂, where
On putting values from the question in the above equation, we get
M₂ = (1.3)(500) / (30) = 21.67 M
Hence resultant concentration of NaOH is 21.67 m.
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