EXP 1 Stoichiometry

q1 and lab

STOICHIOMETRY

It is the quantitative relationship between the amount of reactants used and the amount of products formed.

molecular weight

The ______of a compound is the sum of the atomic weights of all the atoms present in a molecule.

Formula weight

________ applies to both ionic and molecular compounds.

MOLE

A standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.

PERCENT COMPOSITION

It is the relative amount of the elements in a compound.

empirical formula

The __________ is the smallest whole number ratio of atoms present in a compound

molecular formula

The _______ is the actual number of atoms present in a molecule of the compound.

STOICHIOMETRY

It involves analyzing the quantitative relationships between reactants and products in a chemical

Limiting reactant

The substance that determines the maximum amount of product that can be formed in a reaction. The reaction ceases when the limiting reactant is completely consumed.

Excess reactant

The reactant that remains after the limiting reactant is fully consumed.

Theoretical yield

The calculated amount of products formed from the complete reaction of the limiting reactant.

Actual yield

The actual amount of product obtained from a reaction.

Percentage yield

The ratio of actual yield to theoretical yield, expressed as a percentage.

Balance the chemical reaction

STEP 1 stoichiometry

Write the unbalanced equation.
List the number of atoms.
Adjust coefficient.
Check again and adjust
Final check

Step 1 procedure of stoichiometry

Compute the molecular weights of the reactant and the product

STEP 2 of stoichiometry

Calculate the theoretical yield

STEP 3 of stoichiometry

Dimensional analysis

is a method used in physics and chemistry to analyze and solve problems involving units and dimensions. It involves examining the dimensions of physical quantities and using these dimensions to derive relationships between different variables in a problem.

Calculate the percentage yield

STEP 4: