Pick up turned back papers.

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2.10.15

• Pick up turned back papers.
• Pick up daily papers
• Pick up sock and board.
• Do Now
• Follow the link or qr to warmup you have you
  have until 4 minutes after the bell
• http//bit.ly/1AQsVuS

5 min
2
HW Check 2.10

1. Explain why one mole of oxygen and one mole of
   hydrogen can weigh different amounts.
2. How many atoms are in one mole?
3. How many grams are in 3 moles of aluminum?
4. How many grams are in one mole of saccharin
   (C7H5NO3S)

5 min
3
Today is February 9, 2015
Topic The Mole Lesson Objectives SWBAT? 2.2.4
Analyze Stoichiometric relatioships inherent in a
chemical reaction 2.2.5 Analyze quantitatively
the composition of a substance (empirical
formula, molecular formula, percent composition,
and hydrates) Essential Question 2.2 Analyze
chemical reactions in terms of quantities,
product formation, and energy.
4
Homework 2-10

• Study Guide
• Pg

5
IMPORTANT DATES

• Monday 2/9 Chemical Reaction Quiz
• Tuesday 2/10 Tutoring 230-330
• Wednesday 2/11 HOMEROOM / 3rd and 4th
  block
• Thursday 2/12 Tutoring 230-330
• Thursday 2/12 Chemical Rxn Test
• Friday 2/13 NO SCHOOL

6
Agenda 2-10

• Do Now
• HW check
• Stoichiometry Pre-Assessment
• Work groups
• Mole Conversions
• Study Guide

7
Stoichiometry pre-assessment

• 15 minutes
• Pencil
• No phones
• Calculators
• Use reference tables
• Sheilds up

8
Work Groups

• Nomenclature Review
• Stoichiometry

15 min
9
Review of Formula Mass
10
Calculations with MolesConverting moles to grams
How many grams of lithium are in 3.50 moles of
lithium?
3.50 mol Li
6.94 g Li
24.3
g Li
1 mol Li
11
Moles ? Grams Practice
12
Calculations with MolesConverting grams to moles
How many moles of lithium are in 18.2 grams of
lithium?
18.2 g Li
1 mol Li
2.62
mol Li
6.94 g Li
13
Grams ? Moles practice
14
Study Guide Head Start
15
Calculations with MolesUsing Avogadros Number
How many atoms of lithium are in 3.50 moles of
lithium?
3.50 mol
6.02 x 1023 atoms
2.07 x 1024
atoms
1 mol
16
Calculations with MolesUsing Avogadros Number
How many atoms of lithium are in 18.2 g of
lithium?
18.2 g Li
6.022 x 1023 atoms Li
1 mol Li
6.94 g Li
1 mol Li
(18.2)(6.022 x 1023)/6.94
atoms Li
1.58 x 1024
17
Formula Writing Review

• M.4.2.1

18
M

1. Mg Cl2 ?
2. Al NO3 ?
3. Fe F2 ?
4. Dicarbon tetroxide

19
4

1. Li P ?
2. K SO4 ?
3. Mn S ?
4. Nitrogen trisulfide

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2

1. B Cl2 ?
2. NH4 I2 ?
3. Cu F2 ?
4. Trinitrogen hexachloride

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1

1. Al O2 ?
2. Ag Se ?
3. Rb NO2 ?
4. Phosphorus dihydride

22
TOTD

• When naming binary compounds the suffix must be
• ate b) ite c) ide
• 2. Aluminum Sulfate and Potassium Nitrate both
  contain which element? 3. What distinguishes a
  compound that contains a polyatomic ion from a
  binary molecular compound?

23
Chemical Reactions Groups
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M.4.2.1 Foldable

• Converting Moles to Grams
• Converting Grams to Moles
• Using Avogadros Number (1)
• Using Avogadros Number (2)

25
Calculations with MolesConverting moles to grams
How many grams of lithium are in 3.50 moles of
lithium?
3.50 mol Li
6.94 g Li
24.3
g Li
1 mol Li
26
Calculations with MolesConverting grams to moles
How many moles of lithium are in 18.2 grams of
lithium?
18.2 g Li
1 mol Li
2.62
mol Li
6.94 g Li
27
Calculations with MolesUsing Avogadros Number
How many atoms of lithium are in 3.50 moles of
lithium?
3.50 mol
6.02 x 1023 atoms
2.07 x 1024
atoms
1 mol
28
Calculations with MolesUsing Avogadros Number
How many atoms of lithium are in 18.2 g of
lithium?
18.2 g Li
6.022 x 1023 atoms Li
1 mol Li
6.94 g Li
1 mol Li
(18.2)(6.022 x 1023)/6.94
atoms Li
1.58 x 1024
29
The Mole POGIL

• Work in groups of four
• Reader
• Manager
• Recorder
• Technician / Reporter
• Parts 3 and 4