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List the following in decreasing order of strength (from strongest to weakest): hypochlorous acid, choric acid, perchloric acid, chlorous acid. Explain what trend in these oxoacids is making them progressively more acidic.
Calculate the mass of one oxygen atom and determine the number of oxygen atoms in a 10.00g sample of the element.
A gas expands and does P-V work on the surroundings equal to 281 J. At the same time, it absorbs 216 J of heat from the surroundings. What is the change in energy of the system?
Five structural isomers have the formula C6H14. Where needed, draw the structure and give the IUPAC name of all five isomers
For a second-order reaction, what quantity, when graphed versus time, will yield a straight line. The natural log of the concentration.
Will water or cyclohexene be present in greater amount in the distillate from co-distillation. Explain.
What are the frequency and energy of a photon with a wavelength of 900 nm. Report your answers to three significant digits.
A 113L sample of helium at 27 degrees Celsius is cooled at a constant pressure to -78 degrees Celsius. calculate the new volume of the helium.
Each day, the stomach produces 2.4 L of gastric juice that contains 0.11 M HCl. How many grams of HCL this this corresponds
H2s and H20 have similar structures and their central atoms belong to the same group. Yet H2S is a gas at room temperature and H20 is a liquid. Use bonding principals to expalin why this is.
What is the activation energy for this reaction? a) 112 kJ/mol. b) 56 kJ/mol. c) 28 kJ/mol. d) 336 kJ/mol. e) 448 kJ/mol.
solution of 116 mL of .180 m of KOH is mixed with 290 mL of .190 m NiSO4. What are the concentrations of Ni, SO4 and K that remain
What are the concentrations of OH- and H in a 0.00067 M solution of Ba(OH)2 at 25 °C? Assume complete dissociation.
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