Question

A digital watch battery draws 0.25 milliamperes of current, which is provided by a mercury battery...

A digital watch battery draws 0.25 milliamperes of current, which is provided by a mercury battery whose net reaction is:

HgO(s) + Zn(s) → ZnO(s) + Hg(l)

If a partially used battery contains 0.50 g of each of these four substances, for how many hours will the watch continue to run?

0 0
Add a comment Improve this question Transcribed image text
Request Professional Answer

Request Answer!

We need at least 10 more requests to produce the answer.

0 / 10 have requested this problem solution

The more requests, the faster the answer.

Request! (Login Required)


All students who have requested the answer will be notified once they are available.
Know the answer?
Add Answer to:
A digital watch battery draws 0.25 milliamperes of current, which is provided by a mercury battery...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Similar Homework Help Questions
  • A digital watch battery draws 0.25 milliamperes of current, which is provided by a mercury battery...

    A digital watch battery draws 0.25 milliamperes of current, which is provided by a mercury battery whose net reaction is: HgO(s) + Zn(s) → ZnO(s) + Hg(l) If a partially used battery contains 0.50 g of each of these four substances, for how many hours will the watch continue to run?

  • Mercury cells as “button” batteries are very common and consist of HgO, ZnO, and Zn(OH)2 in...

    Mercury cells as “button” batteries are very common and consist of HgO, ZnO, and Zn(OH)2 in a KOH paste. Useful half-cell reactions:             HgO(s) + H2O(l) + 2e = Hg(l) + 2OH-(aq)              eo = 0.0977 V             Zn(OH)42-(aq) + 2e = Zn(s) + 4OH-(aq)                 eo = -1.285 V             Zn(OH)42-(aq) = ZnO(s) + H2O(l) + 2OH-(aq) A)Such batteries have a + sign marked on them. Which half-reaction is occurring at the electrode so marked? B)Draw a schematic of a mercury...

  • A watt is a unit of electrical power and is equal to one joule per second...

    A watt is a unit of electrical power and is equal to one joule per second (1 watt = 1 J s-1). How many hours can a calculator drawing 2.0 × 10-3 watt can be operated by a mercury battery having a cell potential equal to 1.34 V with a mass of 0.22 g of HgO available at the cathode? The cell reaction is HgO(s) + Zn(s) → ZnO(s) + Hg(l)

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT