Chemical Formulas And The Processes For The Chemical Reactions

1237 Words Jan 21st, 2016 5 Pages
This experiment was performed to become familiar with chemical formulas and the processes for the chemical reactions. By breaking down the chemicals, we were able to obtain certain reactants that were already part of the product. In three trials, the zinc chloride’s mass ranged from 1.16 g to 1.62 g. Mass of the chlorine found in the zinc chloride ranged from 0.66 g to 0.96 g. In the three trials of the copper sulfide lab, the copper sulfide’s mass ranged from 2.38 g to 3.18 g. The mass of the sulfur in this lab ranged from 0.64 g to 1.51g.

Introduction:
Chemical formulas indicate how new compounds are formed by chemical combinations of other compounds. To understand reactions, a person should be able to denote the elements from which compounds are formed. By knowing how to write a proper chemical formula and equation, then a person is able to determine formula and molecular weights, percentage composition, the moles, and empirical formulas. A chemical formula tells you the correct ratio of each element in the compound and the type of properties it will have. Combinations of the same element, but in different ratios produce different reactions; the chemical makeup of each substance. In the zinc chloride and copper sulfide reactions, knowing the chemical formula helps better understanding of the reactions and the chemical changes occurring.

Equipment:
The equipment used for this lab are: a Bunsen burner, balance, 50-mL graduated cylinder, wire gauze, crucible and…
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