How many  grams of CO2 are dissolved in 300.9884 mL of water (in g), if the partial pressure of the CO2 above the solution is 0.0200 atm (use KH for CO2 in water = 0.0307 M/atm,  molar mass CO2 = 44.01 g/mol ).  Give your answer to three sig figs

A 1.35 m aqueous solution of Compound X had a boiling point of 102.8°C. Which one of the following is most likely to be Compound X? Hint: The boiling point elevation constant for water is 0.52°C/m. Na3PO4 CaCl₂ X OKCI CH3CH₂OH

The concentration of NaCl(aq) in a beaker is 2.00 M. What is the molality of the NaCl solution?(Molar mass of NaCl is 58.44 g·mol-1 and density of NaCl(aq) is 1.07 g/cm3)?:A 1.53 B 2.10 C 2.71 D 3.02 E 3.52

How many grams of KCl will be undissolved when 50g of KCl is dissolved in 100g of water at 20.0oC?

Which of the following phrases best describes the term solubility?             the ability of a solvent to dissolve in a solute       the ability of a solute to dissolve in a solvent       the maximum amount of solute that will dissolve in solvent at a given temperature       the maximum amount of solvent that will dissolve in a solute at a given temperature       the amount of solvent that dissolves in a solute for each 10oC rise in temperature

The molar mass of an enzyme was measured by dissolving the 3.221 grams of the enzyme in 1.00 liter of water. The osmotic pressure of the solution was 5.746 cm of solution at 20°C (assume the density of the solution is 1.00 g/mL and the density of mercury is 13.56 g/mL). What is the molar mass of the enzyme?

Chemistry (Question - 2)

Solutions of hydrogen in palladium may be formed by exposing Pd metal to H₂ gas. The concentration of hydrogen in the palladium depends on the pressure of H₂ gas applied, but in a more complex fashion than can be described by Henry's law. Under certain conditions, 0.56 g of hydrogen gas is dissolved in 197 g of palladium metal. (The density of the resulting solution is 11.7 g/cm³.) (a) Determine the molarity of this solution.

What is the osmotic pressure of a solution at 22.5 oC when 3.5462 g of CoCl 2 (MM = 129.839 g/mol) is dissolved to make 325.0 mL of solution?

5. The vapor pressure of benzene is 73.03 mm Hg at 25 °C. A nonvolatile, nonelectrolyte that dissolves in benzene is TNT. Calculate the vapor pressure of the solution at 25 °C when 12.12 grams of TNT, C,H;N;Os (227.1 g/mol), are dissolved in 155.7 grams of benzene. benzene = CHs = 78.12 g/mol.