'Gram atomic mass' diaporamas de présentation

Chapter 6: Measuring Matter

Chapter 6: Measuring Matter. 3.3 Conversion Factors (IMPORTANT). The same quantity can be measured or expressed in many ways 1 dollar = 4 quarters = 10 dimes = 20 nickels 1 meter = 10 decimeters = 100 centimeters Whenever 2 measurements are equal, a ratio of these measurements will equal 1

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Composition of Substances and Solutions

Composition of Substances and Solutions. Atomic Mass and Formula Mass; The Mole & Molar Mass; Percent Composition of Compounds; Determination of Empirical & Molecular Formulas; Molarity Other Units for Solution Concentrations. Atomic Masses.

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Chapter 7 Chemical Quantities

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CHEMICAL QUANTITIES

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The Mole

The Mole. 6.02 X 10 23. The Mole. 1 pair = 2 representative particles 1 dozen = 12 representative particles 1 mole = 6.02 x 10 23 representative particles The Mole (mol): A unit to count numbers of particles 1 dozen cookies = 12 cookies 1 mole of cookies = 6.02 X 10 23 cookies

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Chemical Quantities

Chemical Quantities. Or How I Learned to Love the Mole. Conservation. What is the law of conservation of matter? In a chemical reaction, matter is neither created or destroyed. In other words molecules can be converted and decomposed but atoms are forever and are always fully accounted for.

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Chapter 6

Chapter 6. Chemical Quantities. How you measure how much?. You can measure mass, or volume, or you can count pieces. We measure mass in grams. We measure volume in liters. We count pieces in MOLES. Moles. Defined as the number of carbon atoms in exactly 12 grams of carbon-12.

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A Mole is Many Things

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The Mole

The Mole. How We Can Accurately Measure Atoms. Remember the Mass of an Atom. An AMU stands for atomic mass unit. The AMU for any element or molecule is found by simply using the average mass value from the p. table The AMU for carbon is 12.01115 The AMU for Boron is 10.811. What is a Mole?.

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