Unit 3(part 2) Moles

Front

What should you do with long hair in the lab?

Back

Long hair must be tied back and out of the way.

Front

What is a beaker used for?

Back

A beaker is used for mixing, stirring, and heating liquids.

Front

What does the periodic table help us calculate?

Back

The periodic table helps us calculate molar mass.

Front

What is the molar mass of Copper (Cu) rounded to two decimal places?

Back

63.55 g/mol

Front

What is a graduated cylinder used for?

Back

A graduated cylinder is used for measuring the volume of liquids accurately.

Front

Define 'mole' in chemistry.

Back

A mole is a unit of measurement for amount of substance, equal to 6.022 x 10^23 particles.

Front

What is the formula to calculate molar mass?

Back

Molar mass = mass of substance (g) / amount of substance (mol).

Front

What safety equipment should be worn in the lab?

Back

Safety goggles and lab coats should be worn to protect against spills and splashes.

Front

What is the purpose of a Bunsen burner?

Back

A Bunsen burner is used to heat substances in the lab.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.