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A solution is prepared by dissolving 396 g of sucrose (C12H22O11) in 604 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
Ballon filled with 500.0 mL of helium at atemp of 27 degrees C and 755 mmHg. As the ballon risesin the atmosphere , the temp & pressure drop. What volume will it have when it reaches an altitude where the temp is - 33 degrees celcius and the press..
what is the global pH change incurred after injection of the HCl? What would the pH change be if the same amount of 1.000 M HCl were put into a gallon of pure water?
What are the Celsius temperatures of Body temperature, ice freezing, water boiling, room temperature?
Assume that a particular reaction evolves 224kj of heat and that 24kj of work is gained by the system. what are values of delta E and delta H for the system
Three gases (8.00 g of methane,CH4 , 18.0 g of ethane,C2H6 , and an unknown amount of propane,C3H8 ) were added to the same 10.0-L container. At 23.0 degrees celusis , the total pressure in the container is 4.40atm . Calculate the partial pressure..
Question- A. Calculate the ratio of solubility of Mg(OH)2 dissolved in pure H2O to Mg(OH)2 dissolved in a 0.180M NaOH solution.
calculate the concentration of all soluble Hg(II) species. Which Hg(II) species is most prevalent? Assume there are no solids present, that the major ligands present are Cl- and OH-
Calculate the equilibrium concentration of H3O+ in the solution if the initial concentration of C6H5COOH is 7.0×10?2 .
Problem- The formation constant of [M(CN)4]2- is 7.70 x 10 16, where M is a generic metal. A 0.160-mole quantity of M(NO3)2 is added to a liter of 1.130 M NaCN solution. What is the concentration of M2 ions at equilibrium
Calculate the work, heat, energy and enthalpy change upon: a) expansion by 3.3 L at p=const (isobaric). b) isothermal expansion by 3.3. L against a constant external pressure of 30.0 kPa c) reversible isothermal expansion by 3.3 L.
How are the dyes called Blue #1 and Yellow #5 similar to each other? How are they different? (Be sure to discuss functional groups.) What ionic group does Yellow #5 have that Blue #1 does not?
A radiometric dating technique uses the decay of U-238 to Pb-206 (the half-life for this process is 4.5 billion years) to determine the age of the oldest rocks on Earth and by implication the age of Earth itself The oldest uranium-containing rocks..
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