Ethanol is oxidised by acidified sodium dichromate in a test-tube reaction, firstly to form ethanal (acetaldehyde), and with further oxidation, ethanoic acid (acetic acid). The experiment is most appropriate for post-16 students.
Windows XP stores all of your iPhone backup files in this location: C:\Documents and Settings\user\Application Data\Apple Computer\MobileSync\Backup. Obviously if your main drive is not C: then youâll have to change that, same goes for âuserâ, be sure to replace with the username of your login in Windows.
Create A Backup. 1  Connect your iOS device to your computer using a USB to iOS connector cable. 2  Open iTunes on your computer. 3  Click the iPhoneÂ® (or other iOS device) icon on the iTunes menu bar. The iPhone management screen opens.  Under Backups, click Back Up Now. A local backup file is created.