Calculate avogadro number
Barium metal crystallizes in a body-centered cubic lattic. The unit cell edge length is 502 pm, and the density of the metal is 3.50 g/cm3. Using this information, calculate avogadro's number
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How many grams of potassium dichromate should be added to a 50.0 mL volumetric flask to prepare 0.025 M Potassium dichromate when flask is filled to the mark with water?
A particular form of electromagnetic radiation has a frequency of 9.87x10^15Hz. What is it's wavelength in nanometers?
A student is coming out of the station by running in the wrong direction on this escalator. The local record time for this trick is 11 s. Relative to the escalator, what speed must the student exceed in order to beat the record?
Which of the following processes is most likely to take place as a result of the influence of temperature on enzyme activity, and not because of enzyme denaturation?
What mass of NaCl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 °C? The freezing point depression constant, Kfp, for water is -1.86 °C/m. Assume the van't Hoff factor for NaCl is 1.87.
What factors does the FTC look at to determine deception? Why is government concerned about the activities of lobbyists?
A superhero flies 271 m from the top of a tall building at an angle of 15 ? below the horizontal. What is the horizontal component of the superhero's displacement?
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