Introduction: Quantifying Matter

Why do we learn physical chemistry? You may choose more than 1 answer.

• To study how matter behaves on a molecular and atomic level.

• To complete the curriculum structure of Industrial Chemical Technology

• To study how chemical reactions occur.

What is mol?

• The measurement of amount of substance

• Define as the number of ¹³C atoms in exactly 12 g of carbon-13

Three states of matter.

• density, volume and weight

• water, metal and gases

• solid, liquid, and gas

Matter is something that take up space and has mass.

• True

• False

Anything that has definite volume but no definite shape.

• Solid

• Liquid

• Gas

Density is a measure of how much mass is contained in a given unit volume.

• True

• False

What is Avogadro's constant? You may choose more than 1 answer.

• 6.022 x 10²³ mol^-1

• The amount of entities per mole

• 1 mol Na = 23.0 g Na = 6.022 x 10²³ Na atoms.

What is/are the correct relation between these units of volume?

• 1 L = 1 dm³

• 1 mL = 1 cm³

• 1 L = 1000 dm³

• 1000 mL = 100 cm³

Extensive properties depend upon the amount of substance in the sample.

• True

• False

Examples of intensive properties are

• temperature

• pressure

• mass

• volume