The purpose of this experiment was to learn how to determine the empirical formula. Empirical means “based on experimental evidence. ” * Experimental Design The reaction that occurred was the reaction Of the elements Zinc (Zen) and Chloride by mixing a piece(s) of Zinc and ml of Hydrochloric Acid (HCI). The amount of Zinc was determined to be between 1. Egg and 1. Eggs.As the reaction occurred there was still water left in the beaker.
In order to remove the water we heated the beaker to evaporate it. The Zinc Chloride then formed as a solid white substance. * Observations As the Zinc and Hydrochloric Acid reacted, bubbling and fizzing occurred. The water became cloudy as the Zinc began to decompose and break apart, The Hydrogen in the Hydrochloric Acid was being released as vapors.
* Data & Evaluation The mass of our beaker was 58. Egg. Our piece of Zinc was massed at 1. Egg.
Our answer may be slightly off because of there may be leftover water that was not evaporated, As a result, the mass of the Chlorine would be higher and that would make the moles of Chlorine higher, causing the ratio of Chlorine to Zinc to be slightly higher than 2. Another error that could have been made is it the Zinc Chloride was heated too much and it began to release chlorine.