Stoichiometry

Question 1

Define a homogenous reaction

Answer 1

Products and reactants are in the same state

Question 2

Define a heterogenous reaction

Answer 2

Products and reactants are in different states

Question 3

State the four basic steps used in Stoichiometry calculations

Answer 3

1. Write/find a balanced chemical equation
2. Calculate mole from the given information
3. Find the mole ratio of given : asked (By using the NUMBERS of the equation)
4. Calculate what is asked

Question 4

Why is the mass of the product obtained not always equal to the theoretically obtainable mass?

Answer 4

• Reaction may be reversible
• Some of the product may be lost when separating the mixture
• Some of the reactants may react in other reactions
• There may be impurities in the reactants

Question 5

Avogrado’s constant. Go.

Answer 5

6.023 x 10^23