ESSENTIAL QUESTION: How do we name compounds?/How do we count very small particles?
RELEVANCE: What’s in a name?/What Avogadro taught his math students..moletiplication!
NGSSS: SC.912.P.8.7; SC.912.P.8.9; MAFS.912.N-Q.1.1; LAFS.910.L.3.4.d; LAFS.910.W.1.1
LEARNING OBJECTIVES: Students will be able to:
-explain the significance of a chemical formula and the meaning of symbols and subscripts.
-apply the mole concept and the law of conservation of mass to calculate quantities of chemicals participating in reactions.
-determine the formula and the name of an ionic compound formed between ions including binary, transition metals and polyatomic ions.
-write and name molecular compounds using prefixes.
-continue quarterly project how does pH affect plant growth.
-update lab notebooks.
-take the QSBA2 exam(make-up)
-recognize the concept of mole as a counting unit.
-use formulas of compounds to find the formula mass and the molar mass.
BELL RINGER: correct HL 1 OR Describe how you would measure the: distance from earth to the farthest star; grains of sand on a beach; number of pennies in a hundred trillion dollars.
VOCABULARY: molecule, monatomic ion, polyatomic ion, subscripts, prefix, diatomic molecules, oxidation numbers, anion, binary, cation, formula unit/atomic mass unit, Avogadro’s number, ionic compound, atom, gas, particle, element, volume, temperature, pressure, ideal gas, empirical formula, molecular formula, molar mass
HOME LEARNING: HL 2 Balancing Chemical Equations HL 3 Avogadro’s Number
AGENDA
WHOLE GROUP
****Note: Student should make a new Cornell notes (be sure to record in the table of contents) for the new topic How do we count very small particles? Handouts distributed today will be SOLEY for THIS topic!
We reviewed the current focus calendar standards.
Students from period 3 redid home learning one correctly as their bell ringer. Other classes wrote to explain how they would mathematically describe large numbers, such as the distance from earth to the farthest star, the number of grains of sand on a beach or the number of pennies in a hundred trillion dollars.
Students received the handouts for home learnings 2 and 3. Home learning 3 is a separate sheet that will be submitted (the half sheet). Home learning 2 is simply to copy the chart for question 3 on the Gay-Lussac handout and complete the table.
Classes that did not complete the notes for naming chemical compounds should do so by viewing previous blogs.
Students received the article they will read and summarize on Avogadro's number. Students received a vocabulary chart that they will complete as they read the article, completing the column of what they think the word means in the context of the article. They should then look the word up in a reliable source (chemistry text or the Sciencesaurius book) and record the definition. Finally, they should use the work in a sentence, list a real-world example of the word, and illustrate the word. This will be graded, so be sure to put your name on your paper!
Students should then, as an exit ticket, write a five to seven sentence summary of the article, being sure to use at least four of the academic vocabulary words correctly in their summary WITHOUT actually writing the definition! This is to be submitted for a grade.
The remainder of the class was spent learning how to solve the problems from the handouts from last class and those connected with this lesson. You can find ALL of the handouts below, including the article, Home learnings 2 and 3, and the vocabulary handout.
This is HL 2. Copy and complete the chart (on your own paper) for question 3.
These handouts comprise HL 3. You are responsible for completing the one labeled HL 3. You have a half sheet that you will submit.
This is the article that you will use to complete the vocabulary activity AND the quick write summary.
These are the handouts to accompany the article. Use them to complete the vocabulary activity.
SMALL GROUP/INDEPENDENT PRACTICE/DI
Students who compete work early should go to
Khan Academy - chemical reactions and stoichiometry - balancing chemical reactions
HOTS:
-Explain how the Law of Conservation of Mass relates to a balanced equation.
-Does the Big Bang Theory contradict the Law of Conservation of Mass? Explain your reasoning.
EXIT STRATEGY: -you do - quick write - 5-7 sentences that summarizes Avogadro’s number. Use 4 of the six terms, but do not write definitions.
