Please help me A 0.200 M NaOH solution was used to titrate a 18.25 mL HE solution. The endpoint was reached after 31.20 mL of titrant
were added. Find the molar concentration of the original HF
solution.

The molar concentration of the original HF  solution : 0.342 M

Given

31.2 ml of 0.200 M NaOH

18.2 ml of HF

Required

The molar concentration of HF

Solution

titration formula

M₁V₁n₁=M₂V₂n₂

n=acid/base valence (amount of H⁺/OH⁻, for NaOH and HF n =1)

Input the value :

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explanation:

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