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Ethyl butanoate, C6H12O2, a cmpd w/ the odor of pineapple. Chlorophyll, C55H72MgN4O5, part of photosynthesis. DEET, C12H17ON, an insect repellent. Oxalic acid H2C2O4, found in spinach and tea. Calculate the empirical formula of each compound with the following percent composition. 94.1% O, 5.9% H 79.9% C, 20.1% H The compound meythl butanoate smells like apples. Its percent composition is 58.8% C, 9.8% H, and 31.4% O. If its gram molecular mass is 102 g/mole, what is its molecular formula? A typical virus particle is 5 x 10-6 cm in diameter. If Avogadros number of these virus particles were laid in a row, how many kilometers long would the line be? a. A compound of carbon and hydrogen has the composition of 92.25% carbon and 7.75% hydrogen by mass. What is the empirical formula of this composition?  If the compound has a mass of 52.03 g/mole, what is the molecular formula of the compound?     Chemistry Name Period "#$}9 : =       > ? 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