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Compare and contrast the number of representative particles and the mass of UF6 with the number of representative particles and mass of CCl3CF3. Explain any differences you observe.
What is [Pb^2+] in a saturated solution of PbCO3 if Na2CO3,with a common ion is added to give [CO3^2-]=3.0x10^-4 M? PbCO3 Ksp=7.4x10^-14
A saturated solution of copper(II) sulfide, CuS, has [Cu^2+]=1.1x10^-18 M. what is the value of Ksp for CuS
A block of glass with flat sides is surrounded by air. A ray of light traveling in the glass is incident on the flat interface with air at the top surface of the block of glass, What is the refracti
for each of the following changes at equilibrium, indicate whether the equilibrium shifts toward products or reactants or does not shift: a)increasing the temperature. b)adding C(s). c)removing CO(g
A 33.6 m length of copper wire at 23?C has aradius of 0.19 mm . The resistivity of copperis 1.7 × 10?8 ? m, determine the current in the wire
for each of the following slightly soluble salts write the equilibrium equation dor dissociation and the solubility product expression: a)Ag2S. b)Al(OH)3. c)BaF2.
A particle with a charge of ? 5.00nC is moving in a uniform magnetic field of B? =?( 1.23T )k^, Calculate the x component of the velocity of the particle
The poison strychnine is a weakly basic compound with Kb = 1.8e-6. What is the pH of a 0.058M solution of strychnine
To separate two pieces of paper whose area is 10 cm by 10 cm, you blow across them with an air speed of 2.40 m/s. What is the resulting force on each
Ammonia is produced by reacting nitrogen gas and hydrogen gas. N2(g) + 3H2(g)<> 2NH3(g) + 92kJ. for each of the following changes at equilibrium, indicate whether the equilibrium shifts toward
An exoplanet of mass 7.4e26 kg orbits its parent star at an angle of inclination of 28.9 degrees. determine the period of the exoplanet in days
What is the effect on Kc when the temperature of an exothermic reaction is lowered. according to le chatelier's principle how is equilibrium in part a reached
An object 2.00 cm high is placed 41.0 cm to the left of a converging lens with a focal length of 30.0 cm, Determine the magnification of the final image
Metal sphere 1 has a positive charge of 8.00nC . Metal sphere 2, which is twice the diameter of sphere 1, What are the final charges on each sphere
An equilibrium mixture at 225 degrees C contains .14 M NH3 and .18 M H2 for the reaction 3H2(g)+N2(g)<>2NH3(g). if the Kc at this temperature is 1.7 X 10^2 what is [N2]
A player kicks a ball from ground level with an initial velocity of 27.00 m/s at 30 degrees above the horizontal. What is the ball's range to one decimal place
the equilibrium constant, Kc, for this reaction is 4.6 x 10^-3. N2O4(g)<>2NO2(g). if the equilibrium mixture contains .050 M NO2 what is[N2O4]
An east-west electric power line carries a 500-A{\rm A} current toward the east. Determine the direction of this magnetic field at Earth's surface directly under the wire
A 0.50-?F and a 1.4-?F capacitor (C1 and C2, respectively) are connected in series to a 14-V battery. Calculate the charge on each capasitor assuming the two capacitors are in parallel
want to synthesize 3-methyl-2-pentene from 2-chloro-3-methylpentane. Which reagent would you use
There are two capacitors of capacitance 5.0uF and 8.0uF are connected in series. Find the equivalent capacitance of the network and the charge on each plate of the capacitors
When using the Cahn-Ingold-Prelog rules for prioritizing groups on a stereogenic carbon, priority is first assigned on the basis of
A "sun yacht" is a spacecraft with a large sail that is pushed by sunlight. Although such a push is tiny in everyday circumstances, What is the magnitude of the resulting acceleration, If the craft s
A group of people with total mass 1500 kg stands in a boat with mass 12,000 kg at rest in frictionless water. If the whole group walks 6.5 m from bow to stern, how much does the boat move in meters