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How to Separate and isolate following compounds: 50% ethyl 4-aminobenzoate, 40% of benzoin, and, 10% 1-4 dibromobenzene.
Calculate the boiling point of a solution formed by dissolving 1.45 grams of napthalene, C10H8, in 7.85 grams of cyclohexane, C6H12.
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of KOH required for precipitation to begin in each case.
Gibbs Free Energy and Equilibrium The reaction SO2(g)+2H2S(g)?3S(s)+2H2O(g) is the basis of a suggested method for removal of SO2 from power-plant stack gases
Give explanation for arrangements how you decide the boiling points comparison - Arrange all these compounds in order of increasing boiling points
2 O3 (g) ? 3 O2 (g) (rate expression)
If 29.1 mL of 0.4 M NaOH is used to reach the endpoint when titrating 20.1 mL of acetic acid, what is the concentration of the acetic acid in moles/L
If the enthalpy of vaporization of CH2Cl2 is 29.0 kJ mole-1 at 25.0 oC and the entropy of vaporization is 92.5 J mole-1 K-1 , calculate a value for the normal boiling temperature of CH2Cl2
What is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? Calculate the wavelength of the 4 ---> 3 transition.
Patients with a high body temperature are often given "alcohol baths." The heat of vaporization of isopropyl alcohol (rubbing alcohol) is 159 cal/g. How much heat is removed from the skin by the evaporation of 190g about 1/2 cup) of isopropyl alco..
A sample of gas with a mass of 1.78 occupies a volume of 961 at a pressure of 753 and a temperature of 16. What is the molar mass of the gas?
The temperature is held at 271 K. Calculate the work done by the gas(in joules). to give the appropriate sign
Determine the mass of lithium hydroxide producecd when 0.38 g of lithium nitride reacts with water according to the follow equation: Li3N + 3H2O equals NH3 + 3LiOH
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