Question

Knowing that at 0 ^oC and an oxygen pressure of 1.00 atm, the aqueous solubility of O₂ (g) is 48.9 mL O2 per liter. The approximate values for the molarity of O₂ (g) in solution and the partial pressure of O₂ above a 8.23 x 10^-4 M O2 (g) saturated aqueous solution at 0 ^oC are respectively:

A. 2.18 M and 3.78 x 10^-4 atm

B. 2.18 x 10^-3 M and 0.378 atm

C. 0.0446 M and 0.0179 atm

D. 44.6 M and 1.84 x 10^-5 atm

Answer 1

): tal T = oc 273:15 K P Latm Valume of O2 42.9 ml 42-9x1032 R = 0.02205 Lalon Krai Ideal Gras Equation ? PV = nRT Lalm x 48.9x103 = n xo:08205 Lam Kimai x273-15% n = 2.18x 10² So malazity qq me males MOIRS Volume of salwion 2018_x10 xó M Now :- PV = nRI PEMBI = n 12T V P= CRI 48= Malarity? | = 2.18x16x RXT initially finally p 8.23 x16XRXT (2 @ Divide en 0/0 - 0.378 alm?

HAC NO.: 3 So Slemmesty Approximale_malarity Partial Presize_of_02 above_8.23.2, 103M 'oz 2.18 x 10 0.378 atm. Saturated salution Carret answer will be