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A sample of krypton gas takes 2033. Is to diffuse across a room. Explain how long will it take the same amount of nitrogen gas to diffuse across the room under identical conditions?
How many grams of Na3PO4 will be needed to produce 300 mL of a solution that has a concentration of Na+ ions of 1.50 M?
Given a solution of ammonium chloride, what additional reagent or reagents are needed to prepare a buffer from the ammonium chloride. Explain.
Calculate the change in entropy when one mole of ice at ?10.0°C and 1 atm is converted to liquid water at ?5.0°C and 1 atm
A flexible container contains 1.50 L of gas at 25 degrees Celcius. What is the new volume when the container is heated to 100 degrees Celcius?
What final temp. would be required to increase the pressure to 1 atm, the volume being held constant?
What is the Cro4^2- concentration in a solution that is 0.0375 M in chromic acid and 0.150 M HCl
a 24.6 ml volume of hcl solution reacts completely with a solid sample of magnesium carbonate producing 183 ml of
The equilibrium-constant expression for the below reaction is given by: Ti(s) + 2Cl2(g) yields TiCl4(l) a. [TiCl4(l)]/[Ti(s)][Cl2(g)] b. [Ti(s)][Cl2(g)]^2/[TiCl4(l)] c. [TiCl4(l)]/[Cl2(g)]^2 d. [Cl2(g)]^-2 e. [TiCl4(l)/[Ti(s)][Cl2(g)]^2
The solubility of AgCl (s) in water at 25 degrees celsius is 1.33 X 10^-5 mol/L and its change in enthalpy of solution is 65.7 kJ/mol. What is its solubility at 54.8 degrees celsius
Consider a saturated solution of calcium fluoride in 0.075 M potassium nitrate. Complete the following tasks, and then answer the question. (Note: Your textbook may not employ the terms Kspo and Ksp'. Please refer to the lecture notes.)
Silver has only two naturally occurring isotopes 107ag with a mass of 106.90509 amu and an abundance of 51.84% and 109 ag with a mass of 108.9047 amu. calculate the atomic mass of silver.
A spherical water tank of radius R=4m is emptied through a small circular hole of radius r=.02m at the bottom. The top of the tank is open to the atmosphere. The instaneous water level h in the tank can be determined from the solution of the follo..
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