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1. A thin-walled plastic cigarette lighter was found to contain 4.2g of butane in an interior volume of 5.12ml. calculate the pressure at 25 C, if the butane had remained as a gas.
2. Comment on the reasonableness of your answer to question #1. (for comparison, a typical medical oxygen tank which is designed to hold about 140 atm pressure on the inside, is made of 12.5 mm thick chrome-steel and weighs about 10 kg.)
3. Assuming ideal gas behavior, calculate the number of times this experiment could be run, using 45ml of butane at 1 atm, from the lighter in question #1.
Identify the original liquid and write a structure for the solid derivative. After identifying the unknown liquid, can you indicate what the structure of the precipitate obtained on reaction with bromine might be?
3.2 x 10-3 moles of O2 gas effuse from a container in 10.0 minutes. How many moles of CH4 gas could effuse from the same container in 10.0 minutes under the same conditions
Explain Maxwell's Distribution diagram and how does it relate to temperatures. What happens to this distribution as the temperature is increased
Suggest mathematical functions that represent a sinusoidal wave of amplitude A, frequency v, and wavelength
The conditions of a gas change in a steady flow process from 20 degrees C and 1000 kPa to 60 degrees C and 100 kPa. Devise a reversible nonflow process
a the enthalpy of vaporization of chloroform chcl3 is 29.4 kj mol-1 at its normal boiling point of 334.88 k. calculate
Distilled water in equilibrium with air contais dissolved carbon dioxide at a concentration of 1.0 x 10^-5 M. Calculate the pH of such a solution.
What is the internal energy of an ensemble of 1 mole of particles having two non-degenerate electronic energy levels separated by 1000cm^-1 at 1310K?
The volume occupaied by 1 gigamole of liquid benzene at 25C. The volume occupied by 1 nanomole of Benzene as vapor at STP (assume an ideal gas)
Approximately how many grams of KCl are there in 200 mL of a 4.0% by mass KCl aqueous solution? Assume that the density of solution equals that of pure water.
What is the concentration of KMnO4 when you mix 2 mL of .160 M KMnO4 with 10 mL of .250 M oxalic acid. Assuming that it took 120 s to observe the color change in the reaction, what is the rate of the reaction
How many different signals are expected for this molecule? That is, how many magnetically different hydrogens are present in the molecule? This is in general determinted by differences in bonding, and distance to an electronegative group.
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