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The nuclear mass of 141Ba is 140.883 amu. Calculate the binding energy per nucleon for 141Ba.
Consider the following solutes and the composition of their aqueous solutions. In which of the following is the composition of the aqueous solution of the solute given
Calculate the change in pH when 9.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
A sample of gas occupies a volume of 115mL at a pressure of 720. mmHg. Calculate its volume at STP.
the ternary compounds called chlorofluorocarbons, or Freons, have proved to be very valuable as refrigerants and as cleaning agents for circuit boards. Unfortunately, in the atmosphere these compounds produce chlorine atoms that catalyze the decom..
When a strong base is added to a solution of CuSO4, which is pale blue, a precipitate forms and the solution above the precipitate is colorless. What is the net chemical equation that describes this reaction? Include the phases of all species in t..
design a molecule with three chiral centers and draw eight possible stereoisomers of the molecule.
What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous hydrofluoric acid requires
The combustion of magnesium metal is described by the following equation. What mass of magnesium must be burned to produce 1.00 kJ of heat
A sample of oxygen gas is collected over water at 25 degrees C. and a total pressure of 654 torr. The volume of gas collected is 500 mL. What mass of oxygen is collected? The vapor pressure of water is 25 degrees C at 23.8 torr.
Describe what is meant by an amphoteric species. Write the equation for the self ionization of water and know the ion product constant expression for water and its value at 25 degrees.
What is the molar mass of the following: a) O2, b) KH2PO4, c) Fe(ClO4)3, d) C4H8O4, e)Ga2(CO3)3, f) KBrO4. Please use significant figures.
The mass percentage of hydrochloric acid within a solution is 10.00%. Given that the density of this solution is 1.049 g/mL, find the molarity of the solution.
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