Download presentation

Presentation is loading. Please wait.

1
The Mole

2
CA Standards Students know the quantity one mole is set by defining one mole of carbon 12 atoms to have a mass of exactly 12 grams. Students know one mole equals 6.02 x 1023 particles (atoms or molecules). Students know how to determine the molar mass of a molecule from its chemical formula and a table of atomic masses and how to convert the mass of a molecular substance to moles, number of particles, or volume of gas at standard temperature and pressure.

3
**The Mole 1 dozen = 12 1 gross = 144 1 ream = 500 1 mole = 6.02 x 1023**

There are exactly 12 grams of carbon-12 in one mole of carbon-12.

4
**I didn’t discover it. Its just named after me!**

Avogadro’s Number 6.02 x 1023 is called “Avogadro’s Number” in honor of the Italian chemist Amadeo Avogadro ( ). I didn’t discover it. Its just named after me! Amadeo Avogadro

5
**Calculating Formula Mass**

Calculate the formula mass of carbon dioxide, CO2. 12.01 g + 2(16.00 g) = 44.01 g One mole of CO2 (6.02 x 1023 molecules) has a mass of grams

6
**Mole Relationships Liters Mole Grams Atoms or molecules 6.02 x 1023**

22.4 L 6.02 x 1023 22. 4 L Mole Mole Relationships Atomic Mass Grams

7
**Calculations with Moles: Converting moles to grams**

How many grams of lithium are in 3.50 moles of lithium? 3.50 mol Li 6.94 g Li = g Li 45.1 1 mol Li

8
**Calculations with Moles: Converting grams to moles**

How many moles of lithium are in 18.2 grams of lithium? 18.2 g Li 1 mol Li = mol Li 2.62 6.94 g Li

9
**Calculations with Moles: Using Avogadro’s Number**

How many atoms of lithium are in 3.50 moles of lithium? 3.50 mol 6.02 x 1023 atoms = atoms 2.07 x 1024 1 mol

10
**Calculations with Moles: Using Avogadro’s Number**

How many atoms of lithium are in 18.2 g of lithium? 18.2 g Li 1 mol Li 6.022 x 1023 atoms Li 6.94 g Li 1 mol Li (18.2)(6.022 x 1023)/6.94 = atoms Li 1.58 x 1024

11
**Standard Molar Volume 1 mole of a gas occupies 22.4 liters of volume**

Equal volumes of all gases at the same temperature and pressure contain the same number of molecules. - Amedeo Avogadro At STP (Standard Temperature and Pressure): 1 mole of a gas occupies 22.4 liters of volume

12
**Calculations with Moles: Using Standard Molar Volume**

How many moles of hydrogen are in 100 L of hydrogen at STP? 100 L 1 mol = mol 4.64 22.4 L

13
**Calculations with Moles: Using Standard Molar Volume**

How many liters are occupied by 3 moles of oxygen gas at STP? 3 mol 22.4 L = L 67.2 1 mol

Similar presentations

OK

UNIT 6: CHEMICAL QUANTITIES Chapter 10: Mole and Volume Relationships.

UNIT 6: CHEMICAL QUANTITIES Chapter 10: Mole and Volume Relationships.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Download ppt on smart note taker Ppt on remote control robot car Download ppt on energy and environment Ppt on introduction to bluetooth technology Ppt on porter's five forces examples Ppt online for free Ppt on tcp/ip protocol suite solutions Ppt on mother's day of class 11 Seven segment led display ppt online Ppt on active matrix organic light emitting diode