Atoms that have a positive or negative electrical charge are called ________.
1 answer:
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Answer : 5.405 moles of are equivalent to 97.3 grams of
Solution : Given,
Mass of = 97.3 g
Molar mass of = 18 g/mole
Formula used :
or,
Now put all the given values in this formula, we get the moles of
Therefore, 5.405 moles of are equivalent to 97.3 grams of
The given question is incomplete. The complete question is:
Suppose a current of 0.920 A is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 47.0 seconds. Calculate the mass of pure silver deposited on a metal object made into the cathode of the cell.
Answer: 0.0484 g
Explanation:
where Q= quantity of electricity in coloumbs
I = current in amperes = 0.920 A
t= time in seconds = 47.0 sec
96500 Coloumb of electricity electrolyzes 1 mole of Ag
43.24 C of electricity deposits = of Ag
Thus the mass of pure silver deposited on a metal object made into the cathode of the cell is 0.0484 g