Saturday
October 25, 2014

Homework Help: chemistry

Posted by sarah on Saturday, May 10, 2014 at 4:47pm.

One kind of battery used in watches contains mercury(II) oxide. As current flows, the mercury(II) oxide is reduced to mercury.
HgO(s) + H2O( ) + 2 e  Hg( ) + 2 OH(aq)
If 2.3  105 amperes flows continuously for 1200 days, what mass of Hg( ) is produced?
a. 2.5 g
b. 5.0 g
c. 9.9 g
d. 13 g
e. 15 g

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