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Explain what concentration of Ag is required to precipitate only AgBr in a solution that contains both Br- and Cl- ions at a concentration of .03 M?
A solution of NaF is added dropwise to a solution that is 0.0144 M in Ba^2+. When the concentration of F^- exceeds __________ M, BaF2 will precipitate. Neglect volume changes. For BaF2, K sp = 1.7 X 10^-6.
Calculate the change in pH when 5.00 mL of .100 M HCL is added to 100 mL of a buffer solution
If the amount of gas collected had not been corrected for the presence of water vapor,what effect would this have had on the calculated value of actual moles of hydrogen
What volume of methanol is formed if 3.11×1011 of methane at standard atmospheric pressure and 25 is oxidized to methanol
Ethylene glycol, C2H6O2 (MW=62.1mol) has a density of 40.0 mass percentage and a solution of ethylene glycol in water is 1.0514 g/mL at 20 EC. Calculate the molality of the solution
Write down the second period elements (ie. lithium through neon), on order of increasing first ionization energy and Write the electron configuration for a gallium atom.
a 270- flask contains pure helium at a pressure of 761 . a second flask with a volume of 455 contains pure argon at a
1. the equation for a beers law plot is y 2012.5x 0.003. if the recorded absorbance for an equilibrium mixture is
Prepare an electrochemical cell by connecting the negative terminal of a voltmeter to a strip of zinc in a solution of 0.500 M ZnCl2(aq) and the positive terminal to a strip of copper in a solution of 0.100 M CuCl2(aq). The two half-cells are conn..
chromium metal can be produced from the high temperature reaction of cr2o3 with silicon by the following reactioncr2o3s
What is the maximun number of ballons that can be inflated. Assume that the gas in the cylinder is at the same teperature as the inflated ballons.
Determine the dominant configuration of energy for this system by identifying energy configurations and calculating the corresponding weights. What is the probability of observing the dominant configuration
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