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• How does the magnitude of Ka (or pKa) affect the equivalence point volume and why? Briefly explain your reasoning.• How does the magnitude of Ka (or pKa) affect the equivalence point pH and why? Briefly explain your reasoning.
In the balanced redox reaction: 2Cu(s) + S(s) > Cu2S(s), how many electrons are gained or lost by each copper atom
if a chemical reaction a b ---gtnbsp c d is endothermic what is the sign of deltah for the reaction? would the
Select all of the correct statements about reaction quotients and equilibrium constants from the choices below. A reaction quotient equals the equilibrium constant at equilibrium.
A list of atomic masses of the elements says that the mass of Br is 80 amu. In the mass spectrum of bromobenzene, no significant signal is seen at m/z 157.
suppose that a sample of gas occupies 73 ml of volume at 25c and a pressure of 266 torr. what would be the volume if
what determines the order in which the component elements of binary compounds are written?
if equal masses of N2 and H2 (7.00 grams each) are combined to produce ammonia NH3, how many grams of ammonia could be produced at maximum yield?
A voltaic cell is based on a Co2+(aq)|Co(s) half-cell and an AgCl(s)|Ag(s) half-cell. Calculate the standard cell potential.
The standard heat of formation \Delta H^\circ _{\rm f} is defined as the enthalpy change for the formation of one mole of substance from its constituent elements in their standard states. Thus, elements in their standard
Provide an expression for the relative probability of finding a population of particles in the box in the second excited state relative to the ground state at 10000K
You have a sample of bone collected from Nevada and you find that it contains strontium-90 and exhibits an activity of 2.5 Bq. How much strontium-90 was present in the bone when the animal died 45 years ago?(The half-life of 90Sr is 29 years.)
The molar heat of neutralization from hydrochloric acid and sodium hydroxide is -57.3 kJ/mol. use this accepted value to predict the heat evolved
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