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The pressure inside a particular 5.00 L bottle of gas must be 1 atm or less in order to open the bottle cap. To what temperature, in C, must a bottle of gas be cooled so that the bottle cap can be removed if at 25.0C the pressure is 2070 mm Hg?
A. 9.19B. 811C. -266D. -163E. 110
A zero-order reaction has a constant rate of 3.20×10-4 . If after 60.0 seconds the concentration has dropped to 6.50×10-2 , what was the initial concentration?
Suppose you have 260.0 mL of a 0.320 M NaC2H3O2 solution. You add 260.0 mL of a 0.320 M HCl solution to it. What is the new pH. If you added an additiional 40.0 mL of a 3.20 M HCl solution to the aboe solution, what is the new pH.
which portion of the titration curve are you in to reach pH = 7? Show your calculations to prove that dilution of 10,000 gal aniline requires 0.58 gal of this acid.
calculate the wavelength of the fifth line in the hydrogen atom paschen series. calculate the energy released in the transition
Does this verify that only a single detergent compound is in the extract. What specifically can you do to gain more information about the composition of the shampoo extract
a gas is placed in a storage tank at a pressure of 20.0 atm at 20.3 degrees celsius. as a safety device there is a
At 500 K, PCl5 decomposes rather extensively into PCl3 and Cl2. If 1.000 moles of PCl5 is placed in a 1 liter box at 500 K, 13.9 % of it decomposes into PCl3 and Cl2. Calculate K for PCl5(g) PCl3 + Cl2
Calculate the bond order in the following species. Predict which of the two species in the following pairs has the higher vibrational frequency:
compare the structures of amino acids, dipeptides, polypeptides, and proteins. which has the largest molecular mass. the smallest.
calculate the heat absorbed by 15.0 g of water to raise its temperature from 20.0oc to 50.0oc at constant pressure. the
An unknown gas contains 82.6% C and 17.4% H by mass. It effuses at 0.87 times the rate of CO2 gas under the same conditions. What is the molecular formula of the gas
Add charges, single electron dots, and/or pairs of dots as appropriate to show the Lewis symbols for the most stable ion of each element. Treat n=4 as the valence shell in all cases.
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