Activity 3.11 - Chemistry Form 4

The aim of the activity is to determine the concentration of the HCl solution using a standardized NaOH solution.

: Clean the magnesium ribbon with sandpaper to remove the oxide layer on its surface, ensuring the reaction is between pure magnesium and oxygen. 2. Experimental Procedure chemistry form 4 activity 3.11

: As soon as the magnesium starts to burn (glows bright white), cover the crucible with the lid to prevent white fumes (magnesium oxide) from escaping. The aim of the activity is to determine

By measuring the (which equals the mass of oxygen lost), and the final mass of copper , we can calculate the mole ratio of Cu : O. and the final mass of copper

: Coil the cleaned magnesium ribbon loosely, place it in the crucible, and weigh it again with the lid (