How Big is a Mole? One mole of marbles would cover the entire Earth

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Presentation transcript:

How Big is a Mole? One mole of marbles would cover the entire Earth (oceans included) for a depth of two miles. One mole of $1 bills stacked one on top of another would reach from the Sun to Pluto and back 7.5 million times. It would take light 9500 years to travel from the bottom to the top of a stack of 1 mole of $1 bills.

Amedeo Avogadro 1 mole = 602213673600000000000000 or 6.022 x 1023 ? quadrillions thousands trillions billions millions 1 mole = 602213673600000000000000 or 6.022 x 1023

Welcome to Mole Island 1 mol = molar mass 1 mole = 22.4 L @ STP 6.02 x 1023 particles

Stoichiometry Island Diagram Known Unknown Substance A Substance B M Mass Mass Mountain Mass Mole Island Volume Mole Mole Volume V Liter Lagoon Particles Particles P Particle Place Stoichiometry Island Diagram

Stoichiometry Island Diagram Known Unknown Substance A Substance B Mass Mass 1 mole = molar mass (g) 1 mole = molar mass (g) Use coefficients from balanced chemical equation Volume Mole Mole Volume 1 mole = 22.4 L @ STP 1 mole = 22.4 L @ STP (gases) (gases) 1 mole = 6.022 x 1023 particles (atoms or molecules) 1 mole = 6.022 x 1023 particles (atoms or molecules) Particles Particles Stoichiometry Island Diagram

Stoichiometry Island Diagram Known Unknown Substance A Substance B M Mass Mass Mountain Mass Volume Mole Mole Volume V Liter Lagoon Particles Particles P Particle Place Stoichiometry Island Diagram

Stoichiometry 2 TiO2 + 4 Cl2 + 3 C CO2 + 2 CO + 2 TiCl4 115 g x g x mol 4.55 mol x molecules How many moles of chlorine will react with 4.55 moles of carbon? 3 mol C x mol C = 4.55 mol Cl2 = 6.07 mol Cl2 4 mol Cl2 C Cl2 How many grams of titanium (IV) oxide will react with 4.55 moles of carbon? 2 mol TiO2 80 g TiO2 x g TiO2 = 4.55 mol C = 243 g TiO2 3 mol C 1 mol TiO2 C TiO2 How many molecules of TiCl4 will react with 115 g TiO2? 1 mol TiO2 2 mol TiCl4 6.02x1023 molecules TiCl4 x molecules TiCl4 = 115 g TiO2 80 g TiO2 2 mol TiO2 1 mol TiCl4 = 8.66x1023 molecules TiCl4 TiO2 TiCl4