Chemistry Lab

Empirical Formula of a Compound Experiment 5
Anderson North
washbowl Corbin
General Chemistry I Lab Wednesday Night
10/21/09

1) Introduction
a) The purpose of this experiment involving semi data-based rules of a compound is to contain the empirical formula of magnesium oxide and the share yield in this quantitative experiment1. Even though magnesium, an alkaline earth metal, is the 8th richest metal in the universe and seventh most commons element in the crust of the earth, it is not piece freely in nature4. Magnesium, when combined with oxygen at elevated temperatures, ruin into a bright white flame to produce magnesium oxide4. Also referred to as magnesia, magnesium oxide is the second largest compound found in the earths crust. Used in pyrotechnics, flares, and dead bulbs, magnesium oxide is also used in the manufacture of insulating materials, shade metals from their ores, and producing medicines4. Magnesium hydroxide, formed when water is added to magnesium oxide during heating, is also cognize as the laxative milk of magnesium4.
The empirical formula, or simplest formula, is reason using experimental values, while the elements symbols and subscripts recreate the smallest whole number ratio of atoms in a compound2.



strange molecular formulas, the empirical formula does not imply the read number of atoms in a molecule3. After finding the empirical formula, the molecular formula can be determined if the hoagie grass of the compound is given3. After calculating the empirical formulas molar mass, molar mass of the compound is divided by the empirical formulas molar mass to find the ratio between the two formulas. The subscripts in the empirical formula are multiplied by this ratio and the molecular formula results3.
Empirical formulas are calculated using several(prenominal) different methods. The first example is calculating empirical formulas from percent compositions using the percents of the different elements. Empirical...If you want to get a panoptic essay, order it on our website: Orderessay



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