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1) What is higher energy, blue light, or red light? To what wavelength do these color correspond?
2) You have explore light as a particle or light as energy. What is the other way you can think about light?
3) Most people prefer natural light from the sun to artificial light from the bulb. How does light from the sun differ from light from a fluorescent light bulb?
a mixture contains 76.5 nacl and 6.5 mgcl2 and 17 na2so4 by mass what is the molarity of cl- ions in a solution formed
calculate the expected pH value of the buffer system 5mL .1M CH3COOH + 5mL .1M CH3COO-Na+ using the henderson-hasselbalch equation using the pKa values: carbonic acid= 6.37 and acetic acid=4.75
when 24.0g of glucose a nonelectrolyte are dissolved in 500.g of water the solution has a freezing point of
You are a laboratory assistant for your chemistry course. There are 250 students in the course, and each needs to use 25 mL of a 0.15 M solution of copper sulfate.
Considering the Heisenberg's uncertainty principle, compute the uncertainty in the position of: a 1.50-mg mosquito moving at a speed of 1.40 m/s (if the speed is known to within a + or - 0.01 m/s)
what will be the concentration of dichlobenil in the pond? The following conversion factors will be helpful: 1 acre=43,560ft2 1ft=12in 1in=2.54cm 1cm3=1mL 1ft3=28,317cm3
Analysis of corrosion mechanisms and preventative measures
a student ran the following reaction in the laboratory at 310 k2 nog br2g 2 nobrgwhen she introduced 0.140 moles of
If a reaction is second order in hydroxide ion by explain what factor the initial rate would change if the concentration of OH- was doubled
For the following reaction, 5.02 grams of nitrogen gas are mixed with excess hydrogen gas. The reaction yields 4.74 grams of ammonia. nitrogen (g) + hydrogen (g) --> ammonia (g)
Use Huckel molecular orbital theory to answer the following questions. Express energies as functions of the parameters α and β. Write down the secular determinant and calculate the π molecular orbital energy levels of ethene.
Consider the brilliant blue spectrum (blue 1) shown here. What is the wavelength of maxmal absorbance in nm? (Do not include units in your answer: number only)
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