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A gas system has an initial volume of 13400 mL with the temperature unknown. When the volume changes to 1.68L the temperature is found to be -220oC. What was the initial temperature in C?
it was necessary to measure the volume of the sample. The diameter of the cylinder was 23.0 mm and the length of the cylinder was 38.9 mm. What was the volume of the aluminum cylinder in cm3?
Write an equation for this reaction? which species acts as the nucleophile? Which species acts as the electrophile?
Calculate the energy in joules and calories required to heat 5.25 g of water from 5.5 oC to 64.8 oC.
How many grams of water are formed when 5.00 g of butanol combust with excess oxygen according to the reaction shown below?
1) Which of these electron configurations has the 4F term symbol for its ground state? p3 d3 d4 f2 f3
what are the heats of formation of the following species.
Calculate the number of moles of the base. Calculate the molarity of the acid solution.
A gas expands and does P-V work on the surroundings equal to 328 J. At the same time, it absorbs 108 J of heat from the surroundings. Calculate the change in energy of the gas.
The isoelectric point (pI) of a peptide is the pH at which the peptide does not migrate in an electric field. Since the peptide is zwitterionic, there are the same number of positive charges as negative charges on the peptide population.
Use the Van Der Waals equation to calculate the pressures of the three real gases. Compare the plots and explain the origins of any differences you find.
How many liters of ammonia gas can be formed from the reaction of 150 L of hydrogen gas? Assume that there is complete reaction of hydrogen gas with nitrogen gas and that all measurements are made at the same temperature and pressure.
You have a radiocarbon sample analyzed and find out that the sample has 60% of the modern level of radiocarbon. Calculate the radiocarbon age of the sample using an assumed 5730-year half-life.
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