If you have more than one Gmail or Google Apps email addresses and you want to access them using Google Chrome, it gets quite difficult because Chrome caches the last email account used.
The solution is to use a different user profile for each email account.
Chrome supports defining user profiles that can have each its own set of bookmarks and settings separate:
You should create a user profile for each email account that you use.
To change between users simply click on the user icon located on the top left corner of the browser.