The protection afforded by calcium oxalate against acid rain
The marble tile coated with calcium oxalate dissolved the least in the vinegar solution.
|Coating||Dissolving rate of marble tile in acidic solution (in grams)|
|Start||Day 1||Day 2||Day 3||Day 4||Day 5|
The above results were then plotted onto a graph.
Warning - An adult is required for the purposes of handling oxalic acid and gloves should be worn at all times. Oxalic acid can be absorbed through the skin and it will react with calcium in the bloodstream, forming kidney stones.