1.3.2 - PERCENTAGE YIELD

Question 1

What is limiting rwactay

Answer 1

A limiting reactant is the reactant that is completely consumed in a chemical reaction and limits the amount of products formed.
The reactants that do not limit the amount product

Question 2

What is stoichiometry

Answer 2

Stoichiometry :

The quantitative study of reactants and products in a chemical reaction.

Question 3

What js excess reactant

Answer 3

An excess reactant is the reactant that is present in a quantity greater than is required to completely react with the limiting reactant.

Question 4

What is theoretical yield?

Answer 4

Theoretical yield is the amount of product that can be formed in a chemical reaction based on the amount of limiting reactant.

Question 5

What is actual yield?

Answer 5

Actual yield is the amount of product actually obtained from a reaction.

Question 6

How To find percentage of yields?

Answer 6

% yield = actual yield / theoretical yield

Times 100

Question 7

FAHAMKAN

Answer 7

Determining Limiting Reactant
Summary of Stoichiometric Method
1. Write complete equation
2. Calculate moles of reactants, A and B.
3. Calculate amount of reactant B required to react completely
with reactant A
4. Compare the amount of B required with that available in the
system.
If B (present) > B(required)
If B (present) < B(required)
 B = limiting reactant
 B = excess reactant  A = limiting reactant

Question 8

MAKE SURE TO REMEMBER

HOW TO FIND MOLES OF SOMERTHING WHEN ONLY MOLES RATIO ARE GIVEN

Answer 8

TRY TO ANSWER QUES EXAMPLE OF 1.3

under theo yoeld or.
stoichiometry