AP Chemistry Review Flashcard Part 1

Front

What is the equation for calculating the density of a substance?

Back

D = m/v, where D is density, m is mass, and v is volume.

Front

P and V are ___________________ related?

Back

inversely related, meaning as one increases, the other decreases.

Front

Real gases behave most like an ideal gas at what conditions of temperature and pressure?

Back

High temperature and low pressure.

Front

Which piece of glassware is the most precise?

Back

Burette, used for delivering variable amounts of liquid with high accuracy.

Front

What does 'more polarizable' refer to in terms of intermolecular forces?

Back

It refers to London dispersion forces, which increase with larger electron clouds.

Front

Define an ideal gas.

Back

An ideal gas is a hypothetical gas that perfectly follows the gas laws at all conditions.

Front

What is the significance of the ideal gas law?

Back

It relates pressure, volume, temperature, and number of moles of a gas: PV = nRT.

Front

What is the difference between an endothermic and exothermic reaction?

Back

Endothermic absorbs heat, while exothermic releases heat.

Front

What is the principle of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is Avogadro's number?

Back

6.022 x 10^23, the number of particles in one mole of a substance.