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.
3. Backup iPhone 5S with iCloud. Another good way I tried to backup iPhone 5S is to use iCloud. But there are some limitations: only 5GB storage in iCloud is free, not all the data on iPhone 5S are backed up (only the purchased music, pictures and videos in the camera roll. SMS/MMS messages, app data, device settings). 3. 2  In the scanning result, select any data to preview. 3  Then choose the files you want to backup and click Recover. 4  4. 5  In the pop-up window, select a save folder from your computer hard drives or from the external hard drive you plug in previously to start backing up iPhone 5S.