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A reference standard prepared by dissolving 5.4 mg of a transition metal coordination compound in 40 mL of water transmits 36.3 percent of incident light at 532 nm. Assuming that Beer's Law is valid for this system, what concentration of the same species is expected to transmit 75.5 percent of light at the same wavelength?
how many grams of ethylene glycol must be added to 700g of water to yield a solution that will freeze at -8.5 degrees Celsius?
Write the cell reaction for the combination of these half-cell reactions that leads to the largest positive cell emf
based on the experament of bromination of acetinilde how many equivalents of CAN of 0.00555 moles relative to acetanilide moles of 0.00381 show your calculation
However, if you treat formaldehyde (CH2O) with potassium cyanide in water, you will not produce the cyanohydrin. You may even produce C3H6O3 (i.e., dihydroxyacetone and glyceraldehyde). Explain this either in words or reactions.
What is the maximum kinetic energy of a photoelectron ejected fromcesium by 555 nm light? Note that if the wavelength of light usedto irradiate the cesium surface becomes longer than 660 nm
In the lab using conc. HCL and heat, if the solubities of reactant and product were reversed , how would the isomerization be followed. How would one knows when it is complete
two determinations of the dissolved oxygen content of a 200 ml sample of water made five days apart gave 5.3 ppm and
A particular formula contains by mass 41.4 g C, 3.47g H and 55.1 g O. 0.050 mol sample of the compound weigh 5.80 g. the molecular formular is
effuse through a membrane. How long would it take the same number of moles of Ar(g) to effuse through the same membrane?
What is the final river temperature downstream? Assume that the density of the waste stream is 1000 kg/m3.
at 25.0degc a sample of xe gas occupies 531 ml in a piston-cylider apparatus when the external pressure is 337 torr. at
Phosphorous acid, is an important compound in industry and agriculture, H3PO3(aq), is a diprotic oxyacid .determine the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq).
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