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An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of...

An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of the compound by mass is composed of tellurium. How many moles of Te are present in 100.00 g of the compound?

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Answer #1

mass of Te in the compound = 28.53 % of 100g = 28.53 g

number of moles of Te = mass of Te / atomic mass of Te

number of moles of Te = (28.53 g / 127.6 g/mol) = 0.224 mol

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