6. Consider the following reaction Ca3 (PO4)2 + 3 H2SO4 →3 CaS04 + 2 H3PO4 a. What masses of calcium sulfate (CaSO4) and phosphoric acid ( H3PO4)can be produced from the reaction of 1.5 kg calcium phosphate [Ca3(PO4)2] with 1.5 kg concentrated sulfuric acid (H2SO4 )?

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UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.