This experiment had no questionable errors or results as the experiment was conducted correctly and precisely. To start the experiment, the mass of a clean and dry crucible was measured and simply recorded as 64.484 grams (Figure Aa). The mass of a sample of the solid metal manganese was then also recorded at 1.07 grams (Figure Ag). Next, together they were both recorded together to have a mass of 65.554 grams (Figure Ab). Within a container, 20mL of 3M of hydrochloric acid was introduced to the metal and a violent reaction took place. After most of the liquid was expelled, the product was heated until completion. There was a pinkish residue of product left in the crucible. After the first heating, the product and crucible were recorded to
