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A solution is prepared by mixing 50.0 mL of 0.30 M Pb(NO3)2 with 50.0 mL of 1.4 M KCl. Calculate the concentrations of Pb2+ and Cl ‾ at equilibrium. Ksp for PbCl2(s) is 1.6 10-5.
If you had an excess chlorine, how many moles of aluminum chloride could be produced from 27.0g og aluminum?
Predict what will happen and check your predictions. Change the styling so that instead of the color changing the link becomes bold when you hover over it. (You need to use the font-weight property.) Why does the white background extend to the end..
Semiconductors, such as silicon, are the heart of the circuits that form the basis for computers and other electronics. These materials are characterized by a gap in the energy
Express the concentration of a 0.0510 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.
A reaction has a standard free-energy change of -12.30 kJ mol-1 (-2.940 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C.
Do the pH values for the more dilute solutions approach the pH of the distilled water. What would we expect to happen if we continued to dilute these samples even further
assuming ideal behavior, calculate the boiling point in C of solution that contains 64.5g or the non-volatile non-electrolyte quinoline( molar mass= 129g/mole) in 500 grams of benzene. For benzene the normal boling point is 80.10 C and Kb = 2.53C/..
What is the molar weight of the compound. Note: the freezing point depression constant of water is 1.86 oC/m
The nitro group needs to be taken off as well. I can't seem to find any reference materials on what reagrents can be used. Can you please advise?
At its boiling point of -34.0 degree Celsius, 6.33 kJ of heat is required to vaporize 22.0 g of chlorine (Cl2). What is the molar enthalpy of vaporization of chlorine.
The equilibrium constant for the dissociation of Br2 at 1600 K is K=0.255. Calculate the standard reaction Gibbs energy at this
Assuming that you start with 2.00 g of sodium benzoate and 5 mL of 3 M HCl, and assuming that the reaction proceeds to form benzoic acid, what would your theoretical yield be? use two decimal places
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