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Batteries Used in Watches Contain Mercury(II)oxide

Question 59

Multiple Choice

Batteries used in watches contain mercury(II) oxide.As the current flows,mercury(II) oxide is reduced to mercury according to the following reaction: HgO(s) + H2O( Batteries used in watches contain mercury(II) oxide.As the current flows,mercury(II) oxide is reduced to mercury according to the following reaction: HgO(s) + H<sub>2</sub>O( ) + 2 e<sup>-</sup> → Hg( ) + 2 OH<sup>-</sup>(aq) If 2.3 × 10<sup>-5</sup> amperes flows continuously for 1200 days,calculate the mass of mercury,Hg( ) ,produced. A) 2.5 g B) 5.0 g C) 9.9 g D) 13 g E) 15 g ) + 2 e- → Hg( Batteries used in watches contain mercury(II) oxide.As the current flows,mercury(II) oxide is reduced to mercury according to the following reaction: HgO(s) + H<sub>2</sub>O( ) + 2 e<sup>-</sup> → Hg( ) + 2 OH<sup>-</sup>(aq) If 2.3 × 10<sup>-5</sup> amperes flows continuously for 1200 days,calculate the mass of mercury,Hg( ) ,produced. A) 2.5 g B) 5.0 g C) 9.9 g D) 13 g E) 15 g ) + 2 OH-(aq)
If 2.3 × 10-5 amperes flows continuously for 1200 days,calculate the mass of mercury,Hg( Batteries used in watches contain mercury(II) oxide.As the current flows,mercury(II) oxide is reduced to mercury according to the following reaction: HgO(s) + H<sub>2</sub>O( ) + 2 e<sup>-</sup> → Hg( ) + 2 OH<sup>-</sup>(aq) If 2.3 × 10<sup>-5</sup> amperes flows continuously for 1200 days,calculate the mass of mercury,Hg( ) ,produced. A) 2.5 g B) 5.0 g C) 9.9 g D) 13 g E) 15 g ) ,produced.


A) 2.5 g
B) 5.0 g
C) 9.9 g
D) 13 g
E) 15 g

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