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A laser beam enters a 19.5 cm thick glass window at an angle of 49.0 degrees (from the normal). The index of refraction of the glass is 1.42. At what angle from the normal does the beam travel through the glass (in degrees)?
A gas evolved during the fermentation of glucose ( wine making) has a volume of1.60 L when measured at 22.0 degree C and 1.00 atm. what was the volume of this gas at the fermentation temperature of 38.0 degree C and 1.00 atm pressure
The rate constant for a first order reaction is 1.8 x 10 to the neg 2 s-1at 742 k and 4.5 x 10 to the neg 2 s-1 at 902 k. what is the activation energy step by step
What effect did you observe when different colored filters were placed atop the solar panel? What does this indicate about different wavelengths of light?
What are the partial pressure in atm of the gases in a mixture that contains 1.0g of hydrogen and 8.0g of Argon in a 3.0L container at 27.0C. What is the total pressure
How did Regan cutting exploration of renewable energies have a long-term impact on our ability to remove our dependence on oil?
Problem- The starship enterprise is caught ni a time warp and Mr. Spock is forced to use the primitive technique of the 21st century to power the spaceship. He foolishly decides to generate heat energy by diluting pure sulfuric acid with water to ..
It takes 47.0 J to raise the temperature of an 9.20 g piece of unknown metal from 13 degrees Celsius to 24.9 degrees Celsius. What is the specific heat for the metal
A mixture is made by combining 1.39 lb of salt and 5.07 lb of water. What is the percentage of salt (by mass) in this mixture?
A mass of mercury occupies 0.950 L. What volume would an equal mass of ethanol occupy? The density of mercury is and the density of ethanol is 0.789 g/mL.
A 1.00 L flask is filled with 1.00 g of argon at 25 °C. A sample of ethane vapor is added to the same flask until the total pressure is 1.350 atm. What is the partial pressure of argon in the flask and what is the partial pressure of ethane in the..
What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 5.60 * 10^2 cal of work done on it?
In Photosystem II of the thylakoid membrane of chloroplasts, approximately 16.3 moles of photons must be absorbed by chlorophyll pigments in order to obtain enough energy to produce one molecule of glucose
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