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Find the atomic weight and identify the element based on the following values for its five isotopes: 179.947 amu (0.12%),181.948 amu (26.50%), 182.950 amu (14.31%), 183.951 amu (30.64%), and 185.954 amu (28.43%).
Calculate the percent yield for an experiment in which 5.50 g of SOCl2 was obtained in a reaction of 5.80 g of SO2 with excess PCl5
If damping causes the amplitude of oscillation of a system to decrease by 50%, then the ratio of the final energy to the initial energy of the system is?
What is the approximate molar mass of lauryl alcohol if the molal freezing-point-depression constant for benzene is 5.12 ºC/m?
Compute the quantity of work(W) that is associated with a 9.5 Litre expansion of a gas against the given pressure of 755mm Hg
Which of the following pairs of amino acids would carry a negative charge on their side chain at pH 8.0?
If the final temperature is 23.5 deg C, what was the unknown volume? (no heat was lost to the surroundings, d of water is 1 g/mL)
The Heisenberg uncertainty principle as well holds for energy and time, two complimentary variables. Explain how well can we know the energy of molecular excited states with lifetimes of a)10 micro seconds; b)10 ns and c)10 ps.
A 12-gram mixture of methane, CH4, and ethane, C2H6, is completely combusted in oxygen. If the total mass of H2O produced is 23.4 grams, what was the approximate mass of the methane in the original mixture
Calculate the pH at the equivalence point for titrating 0.170 solutions of each of the following bases with 0.170 M HBr.
Two of the isomers have C-C-C bond angles that deviate significantly from those predicted by VSEPR theory. On this basis, which isomer would you predict is the least stable one? the second least stable?
Although coals is a complex mixture of substances, its elemntal composition can be approximated by the formula C135H96O9NS. Using this formula predict the amount of CO2 released from the combustion of 1.00 x 10^6 metric tons of coal. 1 metric ton ..
How much work is done when an external pressure of 4.7 atm compresses a chamber from 17.3 liters to 1.1 liters? Please answer in units of kJ.
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