Warm up 11-13-15 1.Balance and List the type of reaction a) _ Al + _ Pb(NO 3 ) 2 ---> _ Pb + _ Al(NO 3 ) 3 b) _ C 3 H 8 + _ O 2 ---> _ CO 2 + _ H 2 O 2.

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Warm up Balance and List the type of reaction a) _ Al + _ Pb(NO 3 ) 2 ---> _ Pb + _ Al(NO 3 ) 3 b) _ C 3 H 8 + _ O 2 ---> _ CO 2 + _ H 2 O 2. A reaction yield 25%, how many grams of CO 2 produced if the expected amount is 80g? Agenda Go over homework Notes Unit 5-4 Mole Poster Due Monday Homework Nov 20 - Quiz Unit 5 Nov 21 - Online HW Unit 5 Dec 9 - Deadline to retake quizzes and turn in absent work

1.Balance and List the type of reaction a) _ Al + _ Pb(NO 3 ) 2 ---> _ Pb + _ Al(NO 3 ) 3 b) _ C 3 H 8 + _ O 2 ---> _ CO 2 + _ H 2 O 2. A reaction yield 25%, how many grams of CO 2 produced if the expected amount is 80g?

Unit 5-4 Notes Stoichiometry & Moles

STOICHIOMETRYSTOICHIOMETRY The quantitative aspects of chemical reactions. Precise measurement, a recipe for chemical reactions

How do we count? 1 “dozen” donuts = ____ donuts 1 “dozen” eggs = _____ eggs 1 “foot” = ______ inches

A “Mole” 1 mole = 6.02 x particles Mole = amount of a substance “mol” Avogadro’s Number Based on the weight of carbon-12 atoms – 1856

Just How Big is a Mole? Enough soft drink cans to cover the surface of the earth to a depth of over 200 miles. 602,200,000,000,000,000,000,000 unpopped popcorn kernels and spread them across the United States of America, the country would be covered in popcorn to a depth of over 9 miles. If we were able to count atoms at the rate of 10 million per second, it would take about 2 billion years to count the atoms in one mole.

Molar Mass The mass of 1 mole (not 1 atom) of a substance Units: g/mol Molar Mass vs. Atomic MassCopper 6.02 x atoms 1 atom 63.5 g/mol63.5 amu

Molar Mass How to find the mass of compounds What is the molar mass of sugar? Sugar = C 6 H 12 O 6

1.How many atoms are in 1 mole of boron? 6.02 x atoms 2.How many atoms are in 2 moles of H 2 O? x atoms 3.What is the atomic mass of Oxygen? Atomic mass= 16 amu (1 atom of oxygen) 4.What is the molar mass of oxygen? Molar mass= 16 g/mol 5.What is the molar mass of H 2 O 18 g/mol Check-In

Mole Project (10 points) Individual Project Due Next Class -Create a “mole” theme poster -Hand drawn and Color -Include a 3 key terms from today’s note. Example theme: Moleo and JulietMolethello Han Molo Moledamort Moleius CaesarWhack-a-moley Angry MolePepto Bismole PikamoleInstaMole