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7. A compound contains 61.22%C,6.16%H, and 32.62%O. (a) What is its empirical formula? (Report in the format CxHyXz ). (b) If its molar mass is
7. A compound contains 61.22%C,6.16%H, and 32.62%O. (a) What is its empirical formula? (Report in the format CxHyXz ). (b) If its molar mass is 196.2g/mol, what is its molecular formula? 8. Bromine, the only liquid nonmetallic element, is used as a bactericide in swimming pools. The mass spectrum of the isotopes of bromine is shown below. (a) How many protons are there in an atom of the most abundant isotope? (b) How many neutrons are there in an atom of the most abundant isotope? (c) How many electrons are there in an atom of the most abundant isotope? (d) If the mass of one isotope is 78.91834 amu and the mass of the other isotope is 80.91629 amu, calculate the atomic weight of bromine and report it to the correct number of significant figures based on the data given
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