chemistry Slide 1 of 39 10 2 MoleMass

chemistry Slide 1 of 39

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole–Mass Relationship How do you convert the mass of a substance to the number of moles of the substance? Slide 2 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole–Mass Relationship Use the molar mass of an element or compound to convert between the mass of a substance and the moles of a substance. Slide 3 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 5 Slide 4 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 5 Slide 5 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 5 Slide 6 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 5 Slide 7 of 39 © Copyright Pearson Prentice Hall

Practice Problems for Sample Problem 10. 5 Problem Solving 10. 16 Solve Problem 16 with the help of an interactive guided tutorial. Slide 8 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 6 Slide 9 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 6 Slide 10 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 6 Slide 11 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 6 Slide 12 of 39 © Copyright Pearson Prentice Hall

Practice Problems for Sample Problem 10. 6 Problem Solving 10. 18 Solve Problem 18 with the help of an interactive guided tutorial. Slide 13 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole–Volume Relationship What is the volume of a gas at STP? Slide 14 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole–Volume Relationship Avogadro’s hypothesis states that equal volumes of gases at the same temperature and pressure contain equal numbers of particles. Slide 15 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole–Volume Relationship The volume of a gas varies with temperature and pressure. Because of these variations, the volume of a gas is usually measured at a standard temperature and pressure. Standard temperature and pressure (STP) means a temperature of 0°C and a pressure of 101. 3 k. Pa, or 1 atmosphere (atm). Slide 16 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole–Volume Relationship At STP, 1 mol or, 6. 02 1023 representative particles, of any gas occupies a volume of 22. 4 L. The quantity 22. 4 L is called the molar volume of a gas. Slide 17 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole–Volume Relationship Calculating Volume at STP Slide 18 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 7 Slide 19 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 7 Slide 20 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 7 Slide 21 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 7 Slide 22 of 39 © Copyright Pearson Prentice Hall

Practice Problems for Sample Problem 10. 7 Problem Solving 10. 20 Solve Problem 20 with the help of an interactive guided tutorial. Slide 23 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole–Volume Relationship Calculating Molar Mass from Density Slide 24 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 8 Hint: Molar mass means you are looking for grams/mole! Slide 25 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 8 Slide 26 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 8 Slide 27 of 39 © Copyright Pearson Prentice Hall

SAMPLE PROBLEM 10. 8 Slide 28 of 39 © Copyright Pearson Prentice Hall

Practice Problems for Sample Problem 10. 8 Problem Solving 10. 22 Solve Problem 22 with the help of an interactive guided tutorial. Slide 29 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole Road Map Slide 30 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole Road Map Slide 31 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole Road Map Slide 32 of 39 © Copyright Pearson Prentice Hall

10. 2 Mole–Mass and Mole– Volume Relationships > The Mole Road Map Slide 33 of 39 © Copyright Pearson Prentice Hall

Mole–Mass and Mole– Volume Relationships > Simulation 10 Use the mole road map to convert among mass, volume, and number of representative particles. Slide 34 of 39 © Copyright Pearson Prentice Hall

10. 2 Section Quiz. Assess students’ understanding of the concepts in Section 10. 2. Continue to: -or- Launch: Section Quiz Slide 35 of 39 © Copyright Pearson Prentice Hall

10. 2 Section Quiz. 1. Calculate the mass in grams of a sample containing 1. 85 x 1034 molecules of water. a. 3. 07 x 1010 g b. 5. 53 x 1011 g c. 188 g d. 8. 46 x 103 g Slide 36 of 39 © Copyright Pearson Prentice Hall

10. 2 Section Quiz. 2. Calculate the number of moles in a spoonful of table sugar (C 12 H 22 O 11) having a mass of 10. 5 g. a. 32. 6 mol b. 3. 59 103 mol c. 3. 07 10– 3 mol d. 1. 85 1022 mol Slide 37 of 39 © Copyright Pearson Prentice Hall

10. 2 Section Quiz. 3. What is the volume of 0. 35 mol of oxygen gas at STP? a. 32 L b. 64 L c. 7. 8 L d. 16 L Slide 38 of 39 © Copyright Pearson Prentice Hall

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