Question

dilute aqueous hydrogen peroxide is used as a bleaching agent and for disinfecting surfaces and small

Enter your answer in the provided box. Dilute aqueous hydrogen peroxide is used as a bleaching agent and for disinfecting surfaces and small cuts. Its concentration is sometimes given as a certain number of "volumes hydrogen peroxide," which refers to the number of volumes of Oz gas, measured at STP, that a given volume of hydrogen peroxide solution will release when it decomposes to O2 and liquid H20. How many grams of hydrogen peroxide are in 0.150-L of 20 "volumes hydrogen peroxide" solution? g H2O2 < Prev 12 of 15 !! Next >

Answer 1

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The chemical reachion takes place id; H2O2 - H2O +102 TATTI 20 volume hydrogen peroxide means, Imlof H₂O2 produce 20 me of On gas nisome of 1720 produce = 20x150 = 3000 ml of Oz gas Density of H2O2 = 1.us gine From balonce chemical ean; i mole of hoa give Įmole of Op. No. of moles in 3000 ml of or S E BODY = 0.1339 mole 22,4 so mole of H2O2 raken= 2X0.1339 = 0.2678 mole a n o al molis of 12 02: quen wt of 1202 mol. wt of H2O2 r weight of H202 = 0.2678x 34 9.109

PANEE? van dan waal equation in ; (et metal (u-no) = nRT a for hydrogen = 0.2453 o for hydrogen= 0.02651 bar imal Limal fet ux 0.2453 x0.986) (20-2X0.02651) L 400 = 2*X 0.0P21x 296.8 (P+ 0.002418) = 24,43 20 Le = 2,478 2.9 atm/ For hychogen - a ton oron onygen = ongqin = 1.382 bar L/mol? 0.03186 Limol D+ 1X 1.382x0.98 (20- 1X0.03186): 16x 0.0921 x296.8 400 P + 0.0034 = 1022 PRIP IP = 1.2165 ahm | Fon onygen