The molarity of aqueous solution is 0.32 M.
Initial volume - 25.5 mL
Initial molarity - 6.25 M
Final volume - 0.500 L
To calculate final molarity, we will use the following relation between given initial and final quantities -
M₁V₁ = M₂V₂
As both the given volumes are in different units, converting mililiters to liters.
As we know, 1000 ml = 1 l
So, 25.5 ml = [tex]\frac{1*25.5}{1000}[/tex]
Hence, the volume 25.5 ml = 0.0255 l
Now, keeping the values in formula to find the molarity of HCl
M₂ = M₁V₁/V₂
M₂ = [tex]\frac{6.25*0.0255}{0.5}[/tex]
Molarity = 0.32 M
Hence, the molarity of given aqueous solution is 0.32 M.
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