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A sample of atomic hydrogen (not diatomic, ignore fine structure) contains slightly more than 1 mole of atoms such that exactly 1 mole of them are in the ground state. At what temperature should we expect to find exactly 1 atom in the n = 3 state?
A cylinder containing a mixture of N2 and O2 is taken from the basement to the top of a 50-story building. Assuming that the temperature remains constant, which of the following properties of the gas change during the ascent
What is the total pressure exerted by a mixture of 1.50 g H2 and 5.00 g N2 in a 5.00 L vessel at 25 ºC
Calculate the heat released by 1.00 X 10^2 g.solution raise its temperature from 25.0C to 31.5 C. the specific heat of the solution is 1.00 cal/g.C
a buffer solution is prepared by adding 15.0 g nac2h3o2 and 12.5 g acetic acid c2h4o2 to enough water to make 500.0 ml
Acrylonitrile is an important building block for synthetic fibers and plastics. Over 2 billion pounds of acrylonitrile are produced in the United States each year. The compound is synthesized from propene in the following reaction
use the factor label method to determine what quantity of 5.00x10 -3 M EDTA would be needed to mtitrate ml of water containing .0124 g of calcium carbonate
Balance the following redox equation using the smallest integers possible and select the correct coefficient for the Mn2+. Mn(s) + Cr2O72-(aq) + H+(aq) ? Mn2+(aq) + Cr3+(aq) + H2O(l)
If I have .0888g of potassium hydrogen sulfate, its density is 2.322g/mL and its molecular weight is 136.17g/mol how many mols do I have
What is the first step in the reaction sequence of these Aldol reactions under basic conditions?
Assume o.2mm^3 of oil is allowed to spread on water over a surface area of 400 cm^2. What will be the average thickness of the film in Angstroms
In Hexaphenylbenzene synthesis, using tetraphenylcyclopentadiene and diphenylacetylene, what volume of carbon monoxide, measured at STP, is produced by the decomposition of 38 mg of tetraphenylcyclopentadienone
Develop a stoichiometry problem that includes finding a mass of reactant/product from another mass of reactant/product.
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