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Calculate the concentration in molarity of argon in a fish tank at 25 degrees Celcius, if the pressure is 1.15atm and the mole fraction of argon in the atmosphere is 0.093. The KH for Ar at 25 degrees Celcius is 1.5*10^-3M/atm.
What are the units of the universal gas constant R? When can a real gas behave as an ideal gas? Are these conditions met in this experiment?
We electrolyze a solution containing M2O7(3-) for 43.30 hr using a current of 2.685 amp to isolate M(s), which has an atomic weight of 215.22. How many grams of M(s) will be produced if we operate the system at 100% efficiency
Which statement best desrcibes the energy change as bonds are formed and broken in this reaction ?
At 25 degrees celcius a sample of NH3 effuses at a rate of .050 mole per minute. Under the same conditions, which gas effuses at approximately one-half that rate?
How much FeO is produced with 2.30 g FeS and .555 moles of H2CO2 if the reaction results in a 80.00% yield
pure (R)-2-Methyl-2-butanol what will your product distribution of R & S alkyl halide be? Explain.
a certain weak acid hahas a ka value of 9.7 x 10 -7.calculate the percent dissociation of ha in a 0.10 msolution?
what purpose does sodium carbonate serve during the extraction of caffeine from tea leaves?
describe a procedure for measuring the density of a liquid such a t-butanol. your only available tools are a graduated
According to the Bohr model, the allowed energies of the hydrogen atom are given by the equation: E = (-21.7 x 10-19)/n2 J. Which of the following energy levels is not possible in the Bohr hydrogen atom
Suppose you carry out a TLC separation of acetaminophen and phenacetin on silica gel using a nonpolar solvent. Which should have the higher R1 value. why
The following reaction is a single-step, bimolecular reaction: When the concentrations of CH3Br and NaOH are both 0.115 M, the rate of the reaction is 0.0010 M/s.
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