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InterviewSolution
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2.38 g of uranium was heated strongly in a current of air. The resulting oxide weighed 2.806 g. Determine the empirical formula of the oxide. (At. Mass U = 238 , O = 16) |
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Answer» Solution :Step 1. To calculate the percentage of uranium and OXYGEN in the OXIDE. `2.806g` of the oxide contain uranium = 2.38 g. `THEREFORE"Percentage of uranium"=(2.38)/(2.806)xx100=84.82` Hence, the percentage of oxygen in the oxide= `100.00-84.82=15.18.` Step 2.To calculate the empirical formula  Hence, the empirical formula of the oxide is `U_(3)O_(8)`. |
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