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List at least two methods for detecting color centers in ionic solids and describe how each works in terms of i) the excitation source and ii) the signal that is collected
Light travels extremely rapidly (c = 3.00×108 ). Suppose you had to travel 20 miles to work every day. If you traveled at the speed of light for the entire trip, how long would it take you to get to work (in seconds)? [1 mile = 1.61]
a fluorinated organic gas in a cylinder is compressed from an initial volume of 960 ml at 158 pa to 478 ml at the same
How many ml of oxygen is dissolved in 50 ml blood plasma at 38 degrees C, if the partial pressure of oxygen in the plasma is 13.3 kPa?
What is the volume at STP of a sample of CO2 that has a volume of 75.0 mL at 30.0 degree Celsius and 680 mmHg?
What will be the present value of the four years of college expenses at the time that Kevin's son starts college? Assume a discount rate of 5.5 percent.
Nitric acid is usually purchased in a concentrated form that is 70.3% HNO3 by mass and has a density of 1.41 g/mL. How much concentrated solution would you take to prepare
The compound lead acetate is a strong electrolyte. Write the reaction when lead acetate is put into water: Make sure to include positive or negative and whether or not each one is (s) (l) or (aq)
A buffer is prepared by adding 11.0 g of ammonium chloride to 250 ml of 1.00 M solution...What is the pH of this buffer
A buffer solution contains 0.386 M NH4Cl and 0.316 M NH3 (ammonia). Determine the pH change when 0.064 mol HBr is added to 1.00 L of the buffer
Urea, NH2CONH2, is manufactured from ammonia as well as carbon dioxide according to the following equation 2 NH3 (g) +CO2 (g) ->NH2CONH2(aq)+H2O (l)
What kind of experimental conditions do you think you would need in order to carry out the reverse reaction. (The preparation of ester from an acid and alcohol)
Problem- Assuming the following determines the specific heat capacity of a calorimeter. 65.9 mL of ethanol at 20.0 oC is mixed with 65.9 mL of ethanol at 80.0 oC. When they are finished mixing the temperature of the mixture is 43.51 oC. Assume the..
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