Unit 2- Measurements, Math, and the Mole

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Molar mass of Compounds Ex: Write the molar mass of H 2 O as a conversion factor Ex : H 2 O = 18.02 grams (you need to add) 2 Hydrogen’s : (1.01) 2 = 2.02 1 Oxygen: (16.00) 1 = 16.00 = 18.02 g Molar mass of H 2 O= 1 mole 18.02 g
“Mole Map” for Calculations use molar mass use Avogadro’s number Grams Moles particles g/ mol 1 mol/ 6.02 x 10 23 (use the periodic table) Everything must go through Moles!!!
Page 1 and 2:
Unit 2- Measurements, Math, and the
Page 3 and 4:
Significant Figures
Page 5 and 6:
Ex. 1 Practice- What are the best m
Page 7 and 8:
Rules for identifying Significant F
Page 9 and 10:
Rules for Counting Significant Figu
Page 11 and 12:
Multiplying & Dividing with Sig Fig
Page 13 and 14:
Adding and Subtracting with Sig Fig
Page 15 and 16:
Commonly Used (SI) Metric Units Qua
Page 17 and 18:
Scientific Notation
Page 19 and 20:
Imagine the difficulty of calculati
Page 21 and 22: 2 500 000 000 9 8 7 . Step #1: Inse
Page 23 and 24: 0.0000579 1 2 3 4 5 Step #2: Decide
Page 25 and 26: Practice: Convert the following int
Page 27 and 28: Multiplying EX: (4 x 10 6 ) X (3 x
Page 29 and 30: Dividing EX: (4 x 10 6 ) ÷ (2 x 10
Page 31 and 32: Another way of seeing it written Mu
Page 33 and 34: Practice with Calculator (5.23 X10
Page 35 and 36: (4 x 10 6 ) + (3 x 10 6 ) 7 x 10 6
Page 37 and 38: 4.00 x 10 6 +4.30 .30 x 10 6 YES! x
Page 39: Solution… 0.0237 x 10 -4 + 3.48 x
Page 42 and 43: Mass = amount of matter something c
Page 44 and 45: • Is a physical property that is
Page 46 and 47: Ex: Muscle is more dense than fat M
Page 48 and 49: Sample Problems to Solve A) How man
Page 50 and 51: Dimensional Analysis • It is a me
Page 52 and 53: Dimensional Analysis Sample Problem
Page 54 and 55: DIMENSIONAL ANALYSIS REVIEW If an
Page 56 and 57: DIMENSIONAL ANALYSIS REVIEW If you
Page 58 and 59: DIMENSIONAL ANALYSIS REVIEW If you
Page 60 and 61: DIMENSIONAL ANALYSIS REVIEW How man
Page 62 and 63: The Mole naked mole rat
Page 64 and 65: Using the “mole” by weighing Ex
Page 66 and 67: Molar Mass Atomic mass Mass of 1 at
Page 68 and 69: The Mole vs. a Dozen 1 dozen cookie
Page 70 and 71: The Mole- a conversion factor **1 m
Page 74 and 75: Converting Moles and Atoms What is
Page 76 and 77: Sample of Atoms/Molecules and Grams
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Unit 2- Measurements, Math, and the Mole

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