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Which elements exist as molecular species in their most stable states at 25 degrees C and 1 atm? iodine, magnesium, sulfur, cesium, carbon, oxygen, phosphorus, neon
What is the electron configuration for Cuprous and Cupric, and since this is an exception to Aufbau, where are we removing electrons
Which of the following is the best reason as to why increasing the NaCl concentration increases the temperature at which the two strands of DNA "melt" apart
When heat is added to a solution of CoCl2 and HCl in water, what happens on the molecular level that causes the reaction to shift?
Calculate the energy (joules) required to achieve the transition from the ground state to the first excited state for this system.
Describe the general approaches that are used to determine the mechanism of catalysis of an enzyme. Include in the approaches how covalent modification
Calculate the pH at 25 degrees C of a 0.25-M aqueous solution of oxalic acid (H2C2O4). (Ka1 and Ka2 for oxalic acid are 6.5 x 10^-2 and 6.1 x 10^-5, respectively.)
Calculate the molarity of sodium sulfate in a solution prepared by mixing 35 mL of 0.15 M sulfuric acid with 15 mL of 0.85 M sodium hydroxide.
Calculate the 1) mls of 15M Acetic acid 2) the grams of sodium acetate 3) and the mls of water required to make a 500mM acetate buffer at pH 4.85
A container with a removable partition contains gas A and gas B. Gas A is at 400K and 10.0 atm and gas B is at 400K and 4.00 atm. The partition is removed and the gases mix.
You carry out a titration of a pure weak triprotic acid and only see two major pH jumps. One at 10.0 mL and one at 15.0 mL. At what volume is the other equivalence point
What is the rate of the above reaction? What is the closest numerical value of K for the above reaction? What are the units for the rate constant for the reaction?
If the pressure of a gas is 39.18 atm in a piston, what is the final pressure, in atm, if the volume of the piston is multiplied by 4 at a constant temperature?
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