Mastering Stoichiometry Concepts

A mole is a measure of temperature in chemistry.

A mole is a unit that represents 6.022 x 10^23 particles of a substance.

A mole is a type of chemical reaction.

A mole is a unit of mass equivalent to one gram.

1.2044 x 10^24

6.022 x 10^23

3.6888 x 10^24

1.2044 x 10^22

H2 + O2 → H2O

H2 + O2 → H2 + O

2 H2 + 2 O2 → 2 H2O

2 H2 + O2 → 2 H2O

H2O

O2

2H2

H2

50%

25%

100%

75%

2 moles of C

3 moles of C

1 mole of C

4 moles of C

62.45 g/mol

56.12 g/mol

60.00 g/mol

58.44 g/mol

The reactant that remains after the reaction is complete.

The reactant that is completely consumed during the reaction.

The reactant that is added in excess to speed up the reaction.

The reactant that is present in the smallest amount before the reaction.

20 grams

30 grams

15 grams

25.5 grams

1:1

2:1

2:3

1:2