Molar Mass Quiz

How many Elements are in the compound C₂H₈O ?

• 2
• 1
• 3
• 0

Tags

NGSS.MS-PS1-1

How many atoms of oxygen are in Mg(OH)₂?

Tags

NGSS.MS-PS1-1

Fill in the blank: ______ is the BIG number that appears in front of a chemical formula, and represents how many molecules there are.

• An Atom

• The Subscript

• A Molecule

• The Coefficient

Tags

NGSS.MS-PS1-5

What is the molar mass of NaOH?

• 40 g/mol
• 38.989 g/mol
• 23.998 g/mol
• 57.004 g/mol

Calculate the molar mass of Ba(C₂H₃O₂)₂

• 255.3 g/mol

• 237.3 g/mol

• 228.3 g/mol

• 196.3 g/mol

Calculate the molar mass of water (H₂O).

• 10 g/mol

• 17 g/mol

• 18 g/mol

• 34 g/mol

The mass of one mole of substance is called...

• molecular mass
• mole constant
• molar mass
• atomic weight

Tags

NGSS.HS-PS1-7

How many particles are in a mole?

• 602
• 602 million
• 602 moles
• 6.02 x 10²³