Question

An aqueous solution of hydroiodic acid is standardized by titration with a 0.164 M solution of calcium hydroxide.

If 27.3 mL of base are required to neutralize 20.0 mL of the acid, what is the molarity of the hydroiodic acid solution?

______M hydroiodic acid

Answer 1

Answer) Molarity of CaCOH)₂ CM,) = 0. 164M volume of Ca (OH)₂ (V) = 27.3 ml Molarity of HI CM)= ? M volume of HI (V2) = 20.0ml 2HI + Ca CoHD - Ca Iz + 2H₂O According to Eqh (Cacow) CHI) Miv = M₂ V2 aь of ca Colla and Hi in a and b balance are coefficient Chemical deaction. 0.164 CM)x 27.3cm- My x 20.0 Catt 2.164 X 27.3 x 2 20.0 M₂ = 0.447M cs sean Molarity of H1 is 0.447M. CamScanner