In the data table, the mass of the dish and watch glass was recorded as 50.43 grams. The mass of the dish, glass, and 2.38 g of baking soda was 52.81 grams. The mass of the dish, glass, and NaCl residue after the heating of the dish was 51.4 g. This means that after the substance was heated, a chemical reaction took place, and the product, NaCl, was 1.4 grams less than the reactant, NaHCO3. In the calculations table, the mass of the reactant, NaHCO3, was found to be 2.38 g. The number of moles of NaHCO3 reacted was .028 moles. The mass of the product NaCl was 1.41 g. The number of moles of NaCl produced was .028 moles. The experimental mole ratio of NaCl

Sometimes in an experiment, your outcome might not be what you expected to get, and the most common reason for this is human error. For example, 2.38 g of baking soda was used in the experiment, instead of 2 or 3 grams. This might have been a limited factor in the reaction. The watch glass was supposed to be placed on the dish concave side up when heating; since the glass was placed concave side down, this might have hindered the heating process, making it take longer for the liquids to evaporate, therefore altering the results. Another example of human error would be not having exactly 15 ml of HCL added to the baking soda. If more or less HCL was added, this could alter the results by changing the ratio of baking soda to acid, causing the results to be altered. If the dish was kept in the flame for too long and the product was burned or scorched, this would have changed the outcome because an extra chemical reaction would’ve taken place. Another human error that could effect the results was that, due to a time constraint, the dish remained in t

Some topics in this essay:
H2O CO2, , NaCl NaHCO3, H2CO3 H2CO3, H2CO3 NaCl, baking soda, product nacl, yield nacl, balanced equation, human error, mass dish, watch glass, mass product nacl, mass dish glass, altering results, 238 baking, table mass, grams mass dish, 238 baking soda,