J jash1228 New Member Joined May 25, 2016 Messages 6 Gender Undisclosed HSC 2019 Mar 12, 2017 #1 Pure Hydrogen chloride is a gas. What volume of HCL (g) (measured at 25 degrees C and 100kPa) would have to be dissolved in 2.00 L of water to produce a solution with pH of 1.25?
Pure Hydrogen chloride is a gas. What volume of HCL (g) (measured at 25 degrees C and 100kPa) would have to be dissolved in 2.00 L of water to produce a solution with pH of 1.25?
W wowsugoi New Member Joined Mar 15, 2015 Messages 8 Gender Male HSC 2017 Jun 2, 2017 #2 pH = -log(H+) H+ = 10^-pH = 10^-1.25 = 0.056234 mol/L n(HCl) = 0.056234 mol/L* 2 L = 0.11247 mol V(HCl (g)) = n(HCl)*MV = 0.11247 mol*24.79 L/mol = 2.788L = 2.79 L (3s.f.)
pH = -log(H+) H+ = 10^-pH = 10^-1.25 = 0.056234 mol/L n(HCl) = 0.056234 mol/L* 2 L = 0.11247 mol V(HCl (g)) = n(HCl)*MV = 0.11247 mol*24.79 L/mol = 2.788L = 2.79 L (3s.f.)
