Verified Answer :

Willchemistry

Molar mass HBr = 80.91 g/mol

number of moles:

mass of solute / molar mass

52  / 80.91 => 0.642 mols

Volume = 0.25 L

M = n / V

M = 0.642 / 0.25

M = 2.568 mol/L

hope this helps!

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