Question

Question 35 of 38 > Attempti Determine the concentrations of K2SO4, K+, and SO42- in a solution prepared by dissolving 2.05 x 10-4 g K2SO4 in 2.00 L of water. Express all three concentrations in molarity. Additionally, express the concentrations of the ionic species in parts per million (ppm). Note: Determine the formal concentration of SO 2-Ignore any reactions with water. [K,SO) = 8.429 x10-7 [K+] = 1.685 x10-6 [K+) = 65.715 ppm 8.429 x10-7 M (S0-) = 53.9456 ppm

Answer 1

molasity of K450 г Hot of Ka504 molog mass of K SO2 x vol.(dm3) = 2.05*104 g * 1 174.25 gimoin 2 -0.00588 x104 molll [K25043 = 5088 x107 m K2504 = 2K+ + 504 [x+] = 2*5.88 x107 [kt] = 11.76 x167 m SO4 = 5.88 x1ö 7 na * Peppes - Ing in 1000 tot og PPM = Molarity x mol.com. x 1000 [x] = 11.76 x167 x 39.09 x1000 = 459.69x107x103 [kt] = 0.0459 PPM 65042-) = 5.88x167 x 96.06 X1000 = 564.83 x107 X103 [5042-) = 0.0564 PPM