First calculate the molar mass of the potassium chlorate. KClO3 K is 39.1, Cl is 35.45 and O is 16 x 3 =48. The molar mass for one mol is 122.55g/mol. The percent composition is the part the oxygen contributed divided by the total molar mass times 100(to convert a decimal to a percent).48/122.55 x 100 is 39.167%. Potassium Chlorate is 39.167 percent oxygen.he molar mass for one mol is 122.55g/mol. The percent composition is the part the oxygen contributed divided by the total molar mass times 100(to convert a decimal to a percent). 48/122.55 x 100 is 39.167%. Potassium Chlorate is 39.167 percent oxygen.
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3. Open cmd prompt >> type the following command: c:\xyz.bat âtext-to-replaceâ text-to-replace-with c:\FileToEdit.txt > c:\Edited_file.txt. xyz.bat is the batch script we have created in Step 1; FileToEdit.txt is the file you would like to edit; and Edited_File.txt is an edited file. The command will edit the file (FileToEdit.txt) and output into a new file (Edited_File.txt). File to edit. Output - Edited file. This script can also edit an htlml file.