That gas can be used in mixtures with nitrogen gas to ripen bananas just before they are put on the grocery shelf. This mixture
is sold as banana gas. The mass percentages of carbon and hydrogen in this gas are 85.62% for C and 14.38% for H. The molar mass was found to be twice the empirical formula unit molar mass. What is the molecular formula of this gas?
1 answer:
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Answer: 406 hours
Explanation:
where Q= quantity of electricity in coloumbs
I = current in amperes = 39.5 A
t= time in seconds = ?
The deposition of copper at cathode is represented by:
Coloumb of electricity deposits 1 mole of copper
i.e. 63.5 g of copper is deposited by = 193000 Coloumb
Thus 19.0 kg or 19000 g of copper is deposited by = Coloumb
(1hour=3600s)
Thus it will take 406 hours to plate 19.0 kg of copper onto the cathode if the current passed through the cell is held constant at 39.5 A