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Chapter_2_part_1 - Chapter 2 Lecture Notes Part I: Law...

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Chapter 2 Lecture Notes – Part I: Law Abiding Chemists 7.7 g Na + 11.9 g Cl 2 19.6 g NaCl Law of Conservation of Mass in a chemical reaction, matter is neither created nor destroyed total mass of the materials you have before the reaction must equal the total mass of the materials you have at the end total mass of reactants = total mass of products
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Chapter 2 Lecture Notes – Part I: Law Abiding Chemists Law of Definite Proportions All samples of a given compound, regardless of their source or how they were prepared, have the same proportions of their constituent elements Work the following examples with sodium chloride: 1. A 100.0 g sample of sodium chloride contains 39.3 g of sodium and 60.7 g of chlorine, what is the chlorine to sodium ratio? 2. How many g of sodium and g of chloride will be found in a 175.0 g sample of sodium chloride?
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Chapter 2 Lecture Notes – Part I: Law Abiding Chemists Law of Multiple Proportions • When two elements, (call them A and B), form two different compounds, the masses of B that
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This note was uploaded on 10/16/2011 for the course CHEM CHEM111 taught by Professor Deeannforce during the Fall '11 term at Boise State.

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Chapter_2_part_1 - Chapter 2 Lecture Notes Part I: Law...

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