Question

Calculate the molarity of a HCl solution if 25.0 mL of the solution is required to completely titrate 25.0 mL of 0.0400 M Ca(OH)2 • 0.0400 M 0.0800 M O 0.0200 M 4.00 10-5M O 0.220 M

Answer 1

# The complete balanced equation is → 2HCl + cafout) = CaCl2 + 2H20 For neutralisation every one mole of base we require two molé of acid since caloryz will release 2015 im (for which 247 needed). So moles of acid = 3 moles of base moles = Molarity x volume (in Litres) (more. Lit") * (Lit) = MXV Now, Molarity of caput), = 0.0400 M volume of ca phy? 25 mL = 25x1052 volume of her solution at 25 mL = 25x100L Molarity of Hel solution - Ma Now, Mava - Mb MO U = 2 . Ma = 2Mb Ub - 2x0:04x25x10 3 25X10 3 = 0.0800 M ..Molarity of Hel solution = 0.0800 M

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