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What is the kinetic energy of the emitted electrons whencesium is exposed to UV rays of frequency 1.5x10 15 Hz?
Sucrose and glucose are nonvolatile. What is the mole fraction of water in this solution?
A 300 mL stock solution contains 0.9 M Ca(CN)2. When 100 mL of the stock solution is diluted to 120 mL, how many moles of CN- ions will be contained in the dilute solution.
Calculate the heat transferred, q. Is water relevant in finding the heat transferred since it is in mL and not in grams?
Calculate the change in Gibbs free energy for each of the following sets of ΔH ° rxn , ΔS ° rxn , and T .
What is the pH of a solution in which 258 mL of HCl(g), measured at 27.5^circ C and 1.02 atm, is dissolved in 1.5 L of aqueous solution?
ethoxypropan-2-ol can be made by the ring opening of an epoxide when sodium ethoxide in ethanol-water is used. A) Draw the skeletal structure of (R)-1-ethoxypropan-2-ol.
Using stereoformulas, show that reduction of (R)-benzoin from the more hindered face would give give (R,R)-hydrobenzoin. Please no links to external sites. Be clear and concise.
Bomb Calorimeter, gross heat of combustion, In the following experiment 1.1651g of benzoic acid (6318 cal/gm) produced a net corrected temperature rise of 3.047C, also 8 cm (2.3 cal/cm) of fuse wire were consumed in the firing.
The pressure of 3.0 L of an ideal gas in a flexible container is decreased to one-sixth of its original pressure, and its absolute temperature is decreased to one-ninth of the original. What is the final volume of the gas?
Considering the molecule HOOH. What happens to the overlap in the σ bond between the 2 O atoms as one hydroxyl group is rotated in a clockwise relative to the other hydroxyl group?
Calculate Ecell for the following electrochemical cell at 25 °C Pt(s) | H2(g, 1.00 atm) | H+(aq, 1.00 M) || Pb2+(aq, 0.150 M) | Pb(s) given the following standard reduction potentials.
Write down the full Hamiltonian for a He atom moving freely in space, i.e., there is no external potential. b) Now assume there is no repulsion between the electrons
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