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Cumulative Chemistry Problem.
At 70K, CCL4 decomposes to Carbon and Chlorine. The Kp for the decomposition is 0.76.
Find the starting pressure of CCl4 at this temperature that will produce a total pressure of 1.1 atm at equilibrium.
How many grams of water can be cooled from 34°C to 26°C by the evaporation of 81 g of water? (The heat of vaporization of water in this temperature range is 2.4 kJ/g. The specific heat of water is 4.18 J/g·K.)
What mass of rm NaOH is needed to precipitate the rm Cd^{2+} ions from 35.0 mL of 0.540 M rm Cd(NO_3)_2 solution?
If the initial concentration of AB is 0.260 M, and the reaction mixture initially contains no products, what are the concentrations of A and B after 80 s?
Complete combustion of 3.40 of a hydrocarbon produced 10.4g of CO2 and 4.98g of h20. what is the emperical formula for the hydrocarbon
What is the melting range of a mixture of both trans-Cinnamic and urea?
How can you calculate the quantitative precipitation of barium in a solid mixture of sodium chloride and barium chloride
an acetic acid solution of 2.87 pH is titrated with 1.5 mL of bromocresol green. When the color changes to light green
Permanganate ion will oxidize Cr3+ in acidic solution to produce Mn2+ and what other product. The answer is dichromate, but why.
The solute increases the volume of the solution, and an increase in volume requires an increase in the temperature to reach the boiling point (derived from PV = nRT).
The polyyne molecules CkH2 with alternating triple and single carbon-carbon bonds represent potential nanowires for molecular electronics. They can be modelled as linear 1D-boxes with 2k
For a certain glass electrode, the selectivity coefficient for Na+ relative to H+ is 1.0E-12. The electrode is calibrated with NBS standard buffers 6.86 and 9.18,
Molten AlCl3 is electrolyzed for 5 hours with a current of 0.40 ampere. Metallic aluminum is produced at one electrode and chlorine gas, Cl2, is produced at the other.
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