Calculate the formation change
Calculate the formation change CaF2(The sublimation energy for is +178.2, = +589.8, = +1145, and the lattice energy of is 2630 .)
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A 250-L tank is evacuated and connected to a 50.0-L bulb filled with compressed argon. After they are joined, the pressure in the bulb falls to 2.20 atm. If the temperature remains at 25 °C throughout the process, what was the initial pressure
What is the molarity of a solution of 14.0 NH4Br in enough H20 to make 150 mL of solution
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