AP CHEMISTRY PRACTICE 3.11 - 3.13 - Pearl Public School ...

Calculate the mass percent of Co in the 0.630 g sample of the ore. The student in the previous problem used a spectrophotometer to determine the abs o rbance of each of the standard solutions at a wavelength of 510 nm. A wavelength of 510 nm corresponds to an approximate frequency of 6 x 10 12 s-1. What is the approximate energy if one photon ... ................
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