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Assume your eyes receive a signal consisting of blue light, the wavelength= 470nm. The energy of the signal is 2.50x10^-14 J. How many photons reach your eyes
What is the equilibrium concentration of chloroacetic acid, HC2H2O2Cl, in a solution prepared by dissolving 0.0277 mol of HC2H2O2Cl in 1.00 L of water
Sn2 reactions occur at different rates depending on the structure of the substrate in the reaction . Would an Sn2 reaction occur at a faster rate on a primary or a tertiary substrate ? Briefly. Explain your answer
carbon aldoses are there in the L-series? Enter just the numerical value, expressed as a whole number.
Why is modulating ligand concentration not sufficient for adequate control of signaling in an organism? Sketch a diagram of a G-protein coupled receptor cascade, and indicate the possible actions that can be taken by a cell to inhibit the signal.
how will you use the known compounds that are out in the lab to help you find the identity of your unknown compounds
150.g of NaCl completely dissolves (producing Na+ and Cl- ions) in 1.00k of water at 25.0C. The vapor pressure of pure water at this temperature is 23.9torr.
Calculate the entropy change when 100 g of argon is heated and compressed from 300 K, 1.0 atm, to 900 K, 17 atm
What is the ph of a solution that is the mixture of 0.008 M of NaOAc and 0.1 M HOAc? (Ka HOAc= 1.8 x 10^-5)
the element lithium consists of two naturally occurring isotopes with relative abundances of 7.42 and 92.58. the atomic
An El Paso FM radio station broadcasts classic rock at a frequency of 95.5 MHz. Find the wavelength in nm of these radio waves.
Which of the following pairs of substances has the higher chemical potential (?) under the specified conditions? They may be equal. 1.) H2O (s) at -1 degrees Celsius and 1 bar, or H2O (s) at 1 degrees Celsius and 1 bar 2.) H2O (g) at 100 degrees C..
The standard state of sulfur is solid rhombic sulfur. Use the appropriate standard heats of formation given in Appendix II in the textbook to find the average bond energy of the S=0 in SO2.
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