the solubilty of O2 is 2.2 x 10-4 M at 0 degree C and 0.10 atm. Calculate the solubility of 02 at 0 degree C and 0.35 atm
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....
Consider the reaction: N2(g) + O2(g) ⇌ 2NO(g) EQUIL. 0.200 atm 0.100 atm 1.35 x 10^-4 atm Calculate the equilibrium pressure of NO(g) AFTER the addition of 0.400 atm of O2(g). A. 7.82 x 10-4 atm B. 8.43 x 10-4 atm C. 3.02 x 10-4 atm D. 5.02 x 10-4 atm E. 2.23 x 10-4 atm
Point charges q1-q2-3.6 x 10-6 C are fixed on the x-axis at x--2.2 m and x-2.2 m. what charge q (in C) must be placed at the origin so that the electric field vanishes at x 0, y = 2.2 m?
The partial pressure of O2 in air at sea level is 0.21 atm. The solubility of O2 in water at 20 ∘C , at 1 atm gas pressure, is 1.38×10−3 M. Using Henry's law and the data in the introduction, calculate the molar concentration of O2 in the surface water of a mountain lake saturated with air at 20 ∘C and an atmospheric pressure of 660 torr .
show work please
The molar solubility of PbF2 in 0.10 M Pb(NO3)2 solution is 2.85 x 10-4 M. What is the Ksp for PbF2? A. 1.2 x 10-6 B. 3.1 x 10-7 C. 9.6 x 10-13 D. 3.2 x 10-8 What is the molar solubility of PbI, in pure water? Ksp = 9.8 x 10-9 A. 2.1 x 10-3 B. 1.7 x 10-3 C. 4.9 x 10-5 D. 1.3 x 10-3 What is the molar solubility of PbI2 in 0.20...
The Henry's law constant (kh) for O2 in water at 20°C is 1.28 x 10-3 mol/(L'atm). (a) How many grams of O2 will dissolve in 4.75 L of H20 that is in contact with pure 02 at 1.00 atm? g 02 (b) How many grams of O2 will dissolve in 4.75 L of H20 that is in contact with air where the partial pressure of O2 is 0.209 atm? g 02
The solubility of air in water is approximately 2.1 times 10^-3 M at 20 degree C and 1.0 atm. Calculate the Henry's law constant for air. Is the K_H value of air approximately equal to the sum of the K_H values of N_2 and O_2 because these two gases make up 99% of the gases in air? Yes No
nad hi 9. For the following cell at 298 K: (10 pts) Cu(S) Mn(S) MnCl2(aq) (0.0150 M), HCl(aq) (0.10 M) | O2(g) 0.35 bar) PS) .185 V for the Mn2+/Mn couple and E° = 1.229 V for the O/H20, H couple. Assume the aqueous solutions behave ideally. (a) Write the half reactions and the balanced redox equation. (b) Calculate the standard potential of the cell, E' cell. (C) Calculate the potential of the cell, Ecell. (d) Calculate change in the...
What is the pH of a 0.025 M NaNO2 (Kb = 2.2 x 10-11)? IMG 1179.jpg Which of these solutions will have the highest buffer capacity? 0.10 M H3PO4/0.10 M Na2HPO4 0.10 M CH3COOH/0.001 M NaCH3COO 0.10 M H3PO4/0.10 M NaH2PO4 0.10 M H3PO4/0.10 M Na3PO4 Which conjugate acid-base pair would yield a good buffer at pH 4.75? HNOz/NO2 (Kg = 4.5 x 10-4) HCIO/CIO-(Kg = 3.5 x 10-8) CH3CH2COOH/CH3CH2COO (Kg - 1.4 x 10-5) NH4+/NH3 (Kg = 5.6 x...
The molar solubility of Ag2CrO4 in 0.10 M Na2CrO4 is 1.7 x 10^-6 M. What is the value of Ksp for Ag2CrO4?