What mass of sucrose combined with an osmotic pressure
What mass of sucrose should be combined with 537 of water to make a solution with an osmotic pressure of 8.55 at 275 ? (Assume the density of the solution to be equal to the density of the solvent.)
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When a 24.8-g sample of ethyl alcohol (molar mass = 46.07 g/mol) is burned, how much energy is released as heat?
The standard enthalpy of combustion of ethene gas [C2H4] is -1411.1 kJ/mol at 298 K. Given the following enthalpies of formation, calculate delta Hf (final enthalpy) for C2H4.
Prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0 ºC). At equilibrium the concentration of mustard gas at equilibrium is 0.350 M. Calculate Kc.
Consider the titration of 50.0 mL of 0.217 M hydrazoic acid (HN3, Ka = 2.6 x 10-5) with 0.183 M NaOH. Calculate the pH of the solution after addition of 29.7 mL of NaOH solution.
What mass of sucrose should be combined with 537 of water to make a solution with an osmotic pressure of 8.55 at 275 ?
In a reaction at equilibrium the partial presssure of SO2 is 117 torr and that of Cl2 is 255 torr. What is the partial pressure of SO2Cl2 in this mixture?
3.60 bar of NO2 (g) is initially placed in a 1.00 L container. At equilibrium, the total pressure is found to be 4.4 bar. What is the value of Kp under these conditions?
A large weather balloon filled with helium as a volume of 7.00 x 102 L at STP. Which expression should be used to find the mass of helium in the balloon?
Draw the orbital-energy diagrams and use the spectrochemical series to show orbital occupancy and identify ehether the complexes are diamagnetic or paramagnetic.
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
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