Net Ionic Equations

Qualitative Analysis

What is present? Using your 5 senses, it is the identification of chemicals based on observations

Quantitative Analysis

How much is there? The measurement or calculation of the amount of chemical involved.

Crystallization

The solvent is evaporated from the solution, leaving a solid whose mass can be measured

Filtration

A product that has low solubility (the solution has formed a precipitate) is formed in the reaction and is separate by filtration. The mass is then measured.

Titration

A titrant in a burette is added to measure a volume of sample in a flask to determine its concentration

Gas Collection

A gas formed as a product in a reaction is collected and its volume, temp, and pressure are measured to determine an amount

Data Analysis

Graphs, Stoichiometric calculations

Net Ionic Equation

A chemical equation that includes only the entities (molecules, atoms, ions) that react and omits any entities that DO NOT change.

What are the entities that DO NOT change known as?

Spectator Ions.

Spectator Ion Definition

Present in a reaction but do not take part in the reaction. They will be the exact same on both the reactant and product sides of the reaction. NO change in STATE or CHARGE

Step 1: Writing Net Ionic Equations

Write a COMPLETE balanced equation

Step 2: Writing Net Ionic Equations

Write the major entities for each compound in the equation. Dissociate soluble ionic compounds and ionize all strong acids.

What happens to molecular compounds, weak acids, and low solubility ionic compounds?

They remain intact. They DO NOT split apart or change

Step 3: Writing Net Ionic Equations

Cancel spectator ions

Step 4: Writing Net Ionic Equations

Write the net ionic equation. keep an eye on coefficients.

Neutralization reaction

A type of double replacement reaction between an acid and a base that produces a salt (ionic compound) and water (H₂O). Think OH and H