At a total atmospheric pressure of 1.00 atm, the partial pressure of CO₂ in air is approximately 4.0 x 10-4 atm Part A If at 20 °C and a partial pressure of 760 mmHg, the solubility of CO₂ in water is 0.169 g/100 mL, what is the solubility of CO₂ in an open bottle of seltzer water at 20°C? Express your answer using two significant figures. [5] ΑΣΦ X₂ Submit → + √x √x x Î IXI X.10 8.89.10-10 You have already submitted this answer. Enter a new answer. No credit lost. Try again. Previous Answers Request Answer A g/100 mL

Find the freezing point of a solution obtained by dissolving 4.71 g of the aminoacid alanine (a molecular compound with molecular formula C3H7NO2 and molar mass = 89.09 g/mol) in 174 g of benzene. The melting point of pure benzene is 5.5 °C and the freezing point depression constant of benzene is 5.12 °C/m. Give the answer with 2 or more significant figures.

Question 30 of 30 Submit A solution is made by dissolving 2.5 mg sodium fluoride (NaF) in 2.5 L of water at 20.0°C. What is the fluoride ion concentration in ppm of the resulting solution, given that NaF is 45.0% fluoride ion by mass, and the density of water of 1.00 kg/L? | ppm 1 4 6. C 7 +/- x 10 0 Tap here or pull up for additional resources LO 00

As a scuba diver descends under water, the pressure increases. At a total air pressure of 2.69 atm and a temperature of 25.0 °C, what is the solubility of N2 in a diver's blood? [Use the value of the Henry's law constant k calculated in Part A, 6.26 x 10-4 mol/(L· atm).JAssume that the composition of the air in the tank is the same as on land and that all of the dissolved nitrogen remains in the blood. Express your answer with the appropriate units.

g The solubility in water of ionic compound X is measured and found to be 0.372 at 20. °C. Calculate the volume of a saturated solution of X in water that mL would contain 130. mg of X at this temperature. Be sure your answer has the correct unit symbol and number of significant digits.

At room temperature and an oxygen pressure of 1 atm, the solubility of oxygen in water is 1.35 x 10-3 mol/L. Calculate the concentration of dissolved oxygen in water under atmospheric conditions if the partial pressure of oxygen is 0.25 atm.

Enter your answer in the provided box. The partial pressure of CO, gas above the liquid in a bottle of champagne at 20°C is 5.1 atm. What is the solubility of CO, in champagne? Assume the Henry's law constant is the same for champagne as it is for water: at 20°C, k =3.7x 10 mol/(L-atm). mol/L