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C(2)H(5)OH+KMnO(4)rarrHC(2)H(3)O(2)+MnO(...

`C_(2)H_(5)OH+KMnO_(4)rarrHC_(2)H_(3)O_(2)+MnO_(2)+KOH+H_(2)O` is the unbalanced equation if 5g of ethanol & excess amount of aqueous `KMnO_(4)` are reacted and 5.5g of `HC_(2)H_(3)O_(2)` result. What is the percent yield in the nearest integer? [Given: Atomic mass of H = 1, C = 12, O = 16]

Text Solution

Verified by Experts

The correct Answer is:
84
From the principal of atomic conservation on carbon
`3xx"moles of "C_(2)H_(5)OH=3xx"moles of "HC_(2)H_(3)O_(2)`
`"moles of "HC_(2)H_(3)O_(2)=(5)/(46)" (Theoretical)"`
`"moles of "HC_(2)H_(3)O_(2)" (experimental)"=(5.5)/(60)`
`"% yield "=(5.5)/(60xx5)xx46xx100=84%`
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