Moles

What is the definition of molar mass?

• number of grams per one mole of a substance
• whole number ratio that is a multiple of a chemical formula
• simplest, whole number ratio of a chemical formula
• 6.02 x 10^23 particles per one mole of a substance

Molar mass is in units of ________.

• grams
• grams/mole
• mole
• moles/gram

What is the molar mass of AuCl₃?

• 96 g
• 130 g
• 232.5 g
• 303.3 g

What is the definition for Avogadro's number?

• number of grams per one mole of a substance
• whole number ratio that is a multiple of a chemical formula
• simplest, whole number ratio of a chemical formula
• 6.02 x 10^23 particles per one mole of a substance

Which would have more atoms?

• 1 mole of Li
• 1 mole of Au
• 1 mole of Si
• None, all are equal

Which represents the greatest mass of sulfur?

• 1 gram of sulfur
• 1 molecule of sulfur
• 0.5 mole of sulfur
• 6.02 x 10²³ atoms of sulfur

What is the numerical value of Avogadro's number?

• 60.22x10²³
• 6.022x10²³
• 6.022x10³²
• 6.022x10²⁴

How many atoms are found in 1 mol of Xenon atoms?

• 6.022x10²³
• 3.011x10²³
• 1.204x10²⁴
• 6.022x10²⁴

What is molar mass?

• The mass of an atom
• The mass of a mole of atoms
• The mass of a cute little star-nosed mole
• When did we talk about this?

Which has more atoms, 0.1 mole of silver or 1 mole of gold?

• 1 mole of gold
• 0.1 mole of silver
• False, they are the same
• Not enough information