Two-Step Mole Conversions (1 Wheel) Two Wheel Conversions (Composition Stoichiometry) 3.3 The Wheel Model of Mole Conversions.

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Presentation transcript:

Two-Step Mole Conversions (1 Wheel) Two Wheel Conversions (Composition Stoichiometry) 3.3 The Wheel Model of Mole Conversions

Two-Step Mole Conversions (1 Wheel) text pages The Wheel Model of Mole Conversions A quantity of a substance can only be related to another quantity of the same substance through the mole.

Two-Step Mole Conversions (1 Wheel) text pages The Wheel Model of Mole Conversions e.g. 5.0 g Cu x 1 mol Cu x 6.02 x atoms Cu = 4.7 x atoms Cu 63.5 g Cu 1 mol Cu

Two Wheel Conversions text pages The Wheel Model of Mole Conversions Composition stoichiometry is the branch of chemistry that deals with the quantitative relationships between elements in a compound. A quantity of a substance or species can only be related to a quantity of another substance or species through the mole.

Two Wheel Conversions text pages The Wheel Model of Mole Conversions e.g. 5.0 g C 3 H 8 x 1 mol C 3 H 8 x 3 mol C x 6.02 x atoms C = 2.1 x atoms C 44 g C 3 H 8 1 mol C 3 H 8 1 mol C Propane C 3 H 8 Carbon C moles grams atoms molecules