Need chemistry help with many moles of electrons that are produced from a current


label Chemistry
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

How many moles of electrons are produced from a current of 15.6 A in 3.20 h?

Select one:
Dec 4th, 2015

Thank you for the opportunity to help you with your question!

1 Ampere is 1 Coulomb per sec 

Thus 15.6 for 3.20 hours = 11520 seconds wild yield 179712 coulomb

 1 Coulomb is 6.241×1018 times the elementary charge (the one electron charge) 

So the number of electrons will be 179712  * 6.241 * 10^18 = 11.21 10^4 * 10^18 = 11.21* 10^23 electrons

1 mol of electrons is equivalent to that many electrons as the avocado number meaning 

1 mol is 6.022×1023     electrons 

So the number of moles we will have will be : n = 11.21 * 10^23/ 6.022 10^ 23 = 1.86 mol

Correct answer is d. 1.86 mol

Please let me know if you need any clarification. I'm always happy to answer your questions.
Dec 4th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Dec 4th, 2015
...
Dec 4th, 2015
Nov 19th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer