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The solubility of sucrose (common table sugar) at 70C is 320 g/100 g H2O?
a. How much sucrose can dissolve in 200 g of water at 70C?
b. Will 400 g of sucrose dissolve in a teapot that contains 200 g of water at 70C Explain.
calculate the freezing point of a solution made from 22.0 g of octane c8h18 dissolved in 148.0.g of benzene. benzene
What is the molar mass of C15H26O16? For credit, please show your work, that is, show all units, steps, set-ups, operations, work in a logical roadmap, etc.
Draw a structure containing only carbon and hydrogen that is a chiral alkyne with six carbon atoms.
A 10.4-g sample of CaCl2 is dissolved in 107 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
Calculate the expectation value for the potential energy of the H atom with the electron in the 1s orbital. Compare your result with the total energy
A certain substance has a heat of vaporization of 29.75 kJ/mol. At what Kelvin temperature will the vapor pressure be 5.00 times higher than it was at 287 K
Magnesium sulfate can be obtained at a drugstore as Epsom salts. The monohydrate is found as the mineral kieserite (MgSO4 * H2O, 138 g/mol).
Butane's (C4H10) molar enthalpy of vaporization is 22.44 kJ/mol and its normal boiling point is -0.40 °C. A 250-mL sealed Erlenmeyer flask contains 0.55 g of butane at -22 °C. a. What is the equilibrium vapor pressure under these conditions?
The volumes are additive
The combustion of carbon with excess oxygen forming carbon dioxide is exothermic. C(s) + O2(g) => CO2(g) ?Hrxn = -393 kJ If 9,494kJ of heat is needed from the combustion
a write the propagation steps leading to the formation of dichloromethane ch2cl2 from chloromethane.b explain why
Calculate the resonance frequency for 11B in the same magnetic field when its magnetic shielding constant is 100 ppm. Assume the magnetic field is known exactly
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