Jump to content

Challenging Chem Problem

Asian
in Homework Help

Featured Replies

What mass of chromium metal can be produced in 1.00 h by the electrolysis of K2Cr2O7 solution using a current of 15.0 A?

 

I know the answer is 4.85 g but how do you get that?

1 amp is 1 coulomb per second. There are 96485 coulombs in a mole of electrons. The chromium in dichromate is hexavalent (i.e. +6 charge). The molar mass of chromium is 52.00 g/mol.

 

Hopefully that is enough info, without completely giving it away :)

moved to homework help.

 

the information big314mp gave you should be enough. If you can't see how, check your textbook, ask your instructor, or PM me

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.