Mole: Molar Mass/Formula Mass

What is the mole used for?

• To measure the amount of grams in a substance

• To measure the amount of atoms or molecules in a substance

• To measure the amount of energy in a substance

• To measure the amount of bonding in a substance

Avogadro's number is equal to the number of atoms or molecules found in one _____ of any given substance.

• kilogram

• gram

• kelvin

• mole

A mole of Neon contains
6.02 x 10²³ _____.

• atoms
• formula units
• ions
• molecules

Tags

NGSS.MS-PS1-1

The molar mass of an element is the mass of one ____ of the element.

• atom
• molecule
• mole
• gram

Tags

NGSS.MS-PS1-5

The formula mass of a molecule is found by

• adding the molar masses of all the atoms in the molecule.

• dividing the total mass of all the atoms in the molecule by 6.022 x 10²³.

• multiplying the total mass of all the atoms in the molecule by 6.022 x 10²³.

• dividing the total mass of all the atoms in the molecule by the total number of atoms.

What is the mole used for? 

• To measure the amount of grams in a substance
• To measure the amount of atoms or molecules in a substance
• To measure the amount of energy in a substance
• To measure the amount of bonding in a substance 

The mass in grams of one mole of any pure substance is called the .

• molecular formula

• hydrate

• mole

• molar mass

What is the molar mass of Barium (Ba)?

• 137.33 g/mol

• 56 g/mol

• 137 g/mol

• 193.33 g/mol

What is the formula mass of NaCl?

• 28 g/mol

• 58 g/mol

• 59 g/mol

• 58.44 g/mol

What is the molar mass of AuCl₃?

• 96 g
• 130 g
• 232.5 g
• 303.3 g