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How many elements are in the periodic table? (trivia, i know this though)
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Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.
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6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity
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How many elements are in the periodic table? (trivia, i know this though)...
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