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Explain what is the wavelength of a photon of electromagnetic radiation having a photon energy of 4.56 x 10 (-19 exponent) J?
A calorimeter contains 26.0mL of water at 14.0\, ^{\circ}C . When 2.30g of \rm X (a substance with a molar mass of 46.0g/mol ) is added, it dissolves via the reaction rm X{(s)}+H_2O{(l)} \rightarrow X{(aq)} and the temperature of the solution incre..
a .350 g sample of a biomolecule was dissolved in 15.0 g of chloroform and the freezing point depression was determined
an auto mechanic spills 83mL of 2.6M H2SO4. How many milliliters of 1.2M of NaHCO3 must be poured on the spill to react completely with the sulfuric acid?
alculate the volume of .7000 M NaOH required to convert all of the phosphoric acid to sodium dihydrogen phosphate. What is the concentration of the sodium dihydrogen phosphate in the final solution
write the full electronic configuration for sr he zn br and for each of the following elements indicate which set of
Attractive intermolecular forces exist between the molecules in the gas. The effect of these attractive intermolecular forces in a real gas is to
You add 1.00 g of a solid weak acid to 100 mL of water, then titrate with 0.100 M NaOH solution. The pH at the half equivalence point is 4.22. Which of the acids in the Weak Acid Equilibrium Constant table most likely matches your unknown?
Compare the properties of elements and compounds. Give two examples of each, including one example that exists in the human body. Explain the atomic nature of one element and one compound found in human body.
To this vessel 8.6787g of Ne are added in such a way that no butane escapes. The total pressure of the vessel (at the same temperature) is 1420 torr. Calculate the volume of the vessel and the mass of the butane.
Show the stereochemistry of the product(s) you would expect when (2S,3S)-2,3-epoxypentane undergoes acid-catalyzed hydrolysis. If more than one cleavage product is possible, draw them all. Use wedge and dash tools to indicate stereochemistry.
How many Micromoles of A- and HA are present in the solution. If you now add 3mL of 1M NaOH, will you still have a valid buffer.
If .75% of the Si atoms are removed during the treatment in part (c), how many moles of HF are required per wafer assuming 100% reaction yield
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