Computing the fraction of atoms
Calculate the fraction of atoms in a sample of argon gas at 458 K that have an energy of 11.9 kJ or greater.
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A pipette is used to add 46 mL of 0.3 M Pb(NO3)2 to a 273.0 mL solution of 0.3 M NaF. Determine the equilibrium concentration of Pb2+(aq) in the final solution. Ksp(PbF2)=3.6E-8
What is an example of a marketing mix that has a high price level but you see it as having good value? Explain in detail what makes it a good value.
The muon, with mass m=209me, acts as a heavy electron. The muon can bind to a proton to form a muonic atom. Calculate the ionization energy of this atom, and calculate the radius of the muonic atom in its ground state. Ignore reduced-mass effects.
silver has a density of 10.5 g cm3. a graduated cylinder contains 28.0 ml of water. what is the new water level after 35.6 g of silver metal is submerged in the water?
Calculate the work of expansion in Joules accompanying the complete combustion of 1.0 g of sucrose to carbon dioxide and (a) liquid water, (b) water vapour at 20 degrees Celsius when the external pressure is 1.0 atm. Do not enter units with your a
A loudspeaker of mass 16.0 is suspended a distance of = 1.60 below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of = 2.70 . What is the tension in each of the cables?
The ring is dropped into a graduated cylinder filled with water, and is found to displace 0.33 mL of liquid. If the density of 14 carat gold is 12.9 to 14.6 g/mL at 20oC, is the ring made of gold? Explain your answer.
A 29.0-g sample of water at 260. K is mixed with 51.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings
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