how many hours will the watch continue to run?

A1.0-L sample of 1.0 M HCI solution has a 13.5 A current applied for 41 minutes. What is the pH of the solution after the electricity has been turned off?

In an car battery recharging occurs when the car is running by supplying a current to the battery. The reaction that occurs at the cathode in this electrolytic process is   Pb2+  + 2e- -->  Pb (s) If the car supplies a current of 1.50A to the battery, how long will it take in minutes to have 25.0 g of Pb(s) collected at the cathode? Hint: Start with 25.0 g Pb (1A = 1C/sec)  (F= 96500 C/mole e-)  (Pb =207.2g/mol) Answer has 3 sig figs

You are a bioengineer designing a new type of pacemaker. Which type of Galvanic cell would be best for you to use in this new device?

A digital watch battery draws 0.10 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 1.10 g of each of these four substances, for how many hours will the watch continue to run?

A digital watch battery draws 0.35 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 2.40 g of each of these four substances, for how many hours will the watch continue to run?

Do the work on paper please

How many minutes does it take to plate 222.3 g of chromium onto a car part using 14.27 A of current? Cr+ (aq) + 2 e¯ → Cr(s) Your Answer: Answer units