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What are the advantages and disadvantages of simple and fractional distillation? How would the shapes of a graph of these differ or compare if you were to plot distillation temperature vs. total volume of distillate collected?
4 moles of nitrogen gas is placed inside a piston and cylinder device. The piston has a mass of 50 kg and an area of 0.05 m2. 100 kg of weights are placed on the piston. After coming to equilibrium the piston is locked into place.
identify any intermediatesin the mechanism. write the rate law for each elementary reactionin the mechanism. D) if the first step is slow and the second one is fast
Write the possible polymeric structure formed between sebacoyl chloride and butane-1,4-diamine, what is the appropriate name for this polymer
which provides better protection against corrission :painting a metal or galvanizing a metal. justify your prediction
the temperature derivative of the entropy at constant pressure is related to what important,measurable physical quantity? Can this quantity ever be negative?And also recall how the curvature of a surface is related to the sign of a certain derivat..
An overly efficient student simultaneously prepared two titration mixtures, consisting of diluted bleaching solution, KI solution, and HCI solution.
The temperature dependence of the reaction rate constant is given by the equation: ... ln k = ln A - Ea/RT ... ... Where: k = rate constant T = temperature A
A study of this system reveals that there are 4.0E-3 moles of sulfur dioxide gas, and 4.9E-3 moles of oxygen gas present in a 9.0L flask at equilibrium. The equilibrium constant for this reaction is 4.1E-3. Calculate the number of moles of SO3(g) ..
3.00×10-3 mol of HBr is dissolved in water to make 17.0 L of solution. What is the concentration of hydroxide ions, OH-, in this solution?
what is the emperical formula of a compound that is 17.552% Na, 39.696% Cr, and 42,752% O?
Determine the boiling point of an aqueous solution that is 2.30 m ethylene glycol (C2H6O2); Kb for water is 0.52 degrees celsius/m.
What is the enthalpy change for the combustion of 12.5g C4H10 in excess oxygen? C4H10 (g) + 13/2 O2 (g) ------? 4 CO2 (g) + 5 H2O (g) H0 = -1895 kJ
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