4.3 What Is a Mole and How Do We Use It to Calculate Mass

4.3 What Is a Mole and How Do We Use It to Calculate Mass Relationships.Example 1

How many ATOMS of fluorine are present in 3.30 moles of BF3?

N = 6.023x1023 mol-1

4.3 What Is a Mole and How Do We Use It to Calculate Mass Relationships.Example 2

How many MOLES of fluorine are present in 3.09x1022 molecules of BF3?

N = 6.023x1023 mol-1

5.3 What Is a Mole and How Do We Use It to Calculate Mass Relationships.Example 3

How many MOLES of water are present in 5.41 grams of this compound ?

a) 0.1 b) 0.2 c) 0.3 d) 0.4 e) Help

5.3 What Is a Mole and How Do We Use It to Calculate Mass Relationships.Example 4

How many Grams of ethanol (CH3CH2OH) are present in 0.61 moles of this compound ?

a) 46 b) 96 c) 28 d) Help

4.4 How Do We Balance Chemical Equations?Example 1

4.4 How Do We Balance Chemical Equations?Example 2

4.4 How Do We Balance Chemical Equations?Example 3

a) 1 d) 4b) 2 e) 5c) 3

a) 1 d) 4b) 2 e) 5c) 3

4.4 How Do We Balance Chemical Equations?Example 3