ACS General Chemistry Flashcards

Vocabulary flashcards for the ACS General Chemistry exam.

Atomic Number

Number of protons in the nucleus.

Trends that Increase Up and to the Right on the Periodic Table

Ionization energy, electronegativity, and electron affinity.

Molar Mass of H2O

18.02 g/mol

Limiting Reagent

The reactant that is completely consumed and limits product formation.

Shape of CH4

Tetrahedral

Type of Bond Formed Between Na and Cl

Ionic bond

Ideal Gas Law

PV = nRT

Grahams Law

Lighter gases effuse faster than heavier gases.

Negative H

The reaction is exothermic (releases heat).

Formula for Heat Change

q = mcT

K > 1

Products are favored at equilibrium.

Le Chteliers Principle

A system at equilibrium shifts to oppose changes in concentration, pressure, or temperature.

pH of a Neutral Solution at 25 degrees Celsius

7

Brnsted-Lowry Acid

A proton (H+) donor.

Catalyst

It lowers the activation energy without being consumed.

First-Order Reaction (graphed as ln[A] vs. time)

A straight line.

Oxidation in a Galvanic Cell

At the anode.

Positive E degrees cell Value

The reaction is spontaneous.