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Initially there are 3 weights, each weighing 1500kg on the weightless friction-less piston. In addition there is one atm of ambient pressure being exerted on the piston. The radius of the piston is 1 meter and the initial height is 1 meter.
1) At 330 K, how many moles of helium would be below the piston assuming that helium is behaving ideally? 2)Compute the amount of work done by the gas if all three weights were removed simultaneously during an isothermal expansion, Then compute the amount of work done if only one weight is removed at a time. Why do they differ?
3) If all the weight from the cylinder was removed infinitely slowly and isothermally (reversible, isothermal expansion) what is the maximum amount of work that the gas could provide? How much heat would be added to the system to achieve this work?
A voltic cell with an aqueous electrolyte is based on the reaction between Cd2+ (qu) and Mg(s), producing Cd (s) and Mg2+. Write a balanced cell reaction.
The absorbance of a blank solution prepared in the same manner was 0.025. The molar absorptivity of the copper complex is 7.90 x 103 L.mol?1.cm?1. Calculate the weight percent copper in the rock sample
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prepared in good yield as the exclusive product of hydration of an alkyne with water, SO4 and Hg to form ketone
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A buffer contains 0.16mol of propionic acid (C2H5COOH) and 0.17mol of sodium propionate(C2H5COONa) in 1.20 L. 1)What is the pH of this buffer?
Water and 8.00 mol/L potassium nitrate solution are mixed to produce 700 mL of a solution with a concentration of 6.00 mol/L. What volumes of water and potassium nitrate solution are used?
Give the number of electrons, Protons and neutrons in 24NA and give the electron configuration of the following A: A1 B: F- (- is at the top)
calculate the heat in joules released by the dissolving salt. Assume that the specific heat of the solution is the same as thar of pure water(4.184J/g- celcius) and that the calorimeter is perfect.
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