the strength of the solution formed is 3.8.
The amount of solute dissolved in grammes per litre of the solution is used to determine the solution's strength. It stands for the solution's potency or concentration. It uses grammes per litre of expression.
Concentration of NaOH = 19 M
Initial volume of NaOH = 25 mL= 0.025 L
Moles of NaOH = 19*0.025
= 0.475 moles
Final volume of NaOH solution = 5 L
Final concentration = 0.475/5
= 0.095 M
so, the strength is 19/5
= 3.8
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