Chapter 3 - stoichiometry

Question 1

How many atoms/molecules are in one mole?

Answer 1

6.022 x 10^23

Question 2

What are the theories of John Dalton?

Answer 2

chemical compounds are formed when atoms of different elements combine
chemical reactions involve the reorganization of the atoms
during chemical reactions, atoms involved are neither changed or created

Question 3

What is percent composition?

Answer 3

compare the individual mass of the element to the total mass of the compound

Question 4

what is the empirical formula

Answer 4

it is the formula of the simplest, whole-number ratio of the atoms of elements in a compound

Question 5

what is the limiting reactant or reagent?

Answer 5

the reactant that runs out first

Question 6

excess reactant

Answer 6

other reactants that have not completely been consumed

Question 7

Theoretical yield

Answer 7

stoichiometry calculation of amounts of product formed based on limiting reactant

Question 8

What is the actual yield

Answer 8

given to you