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1. All of the following substances can function both as bronsted acids and bases except: HPO4 2-, PO4 3-, H2O
2. Will reactions occur as written:a. HNO3 + F-==>HF + NO3-
b. H2O + SO4 2- ==> HSO4- + OH-
c. NH3 + HCl ==> NH4+ + Cl
Wet steam flows in a pipe at a pressure of 700 kPa. To check the steam quality, the wet steam is expanded to pressure of 100 kPa. The expansion process may be assumed to be isenthalpic
what is the pressure in a 22.7l cylinder filled with 10.8 g of oxygen gas at a temperature of 343
How many grams of dry need to be added to 1.50 of a 0.600 solution of ammonia, , to prepare a buffer solution that has a of 8.59? for ammonia is.
What is the concentrationof lead ions and sulfide ions in a saturated solution of lead sulfide (PbS) soltution at 25 degree celcius(Ksp=3.0x10-28).
If the observed specific rotation of the mixture is -50.0°, what is the specific rotation of the pure R isomer?
Write a balanced SN1 chemical equation between each alkyl halide and the best nucleophile in solution.
you have a 100 mL graduated cylinder containing 50 mL of water. You drop a 175 g piece of brass(density 8.56g/cm^3) into the water. To what height does the water rise in the cylinder?
What is the change in energy, Delta E, in kilojoules per mole of hydrogen atoms for an electron transition from n=9 to n=2
A solution containing iodide ions has a percent transmittance reading of 72.3%. what is the molarity of the iodide ion in this solution
a) H2 (g) + Br2 (g) â?" 2 HBr (g) + heat [0.513] [0.62] [0.346] b) N2O4 (g) + heat â?" 2 NO2 (g) [0.0325] [0.022] c) NH4SH (g) â?" NH3 (g) + H2S (g) + heat [0.027] [0.0234] [0.209] Calculate Ke for the following (equilibrium concentrations give..
If 4 g of CuSO4 is dissolved in 9.0x10^2 mL of 0.40 M aqueous NH3, what are the concentrations of Cu2+, Cu(NH34 2+, and NH3 at equilibrium? (Kf = 5x10^13)
If the entropy of a collection of molecules in 50,000 boxes is 3.73E-20 J/K, how many molecules are there
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