Mole Concepts and Molar Mass

Avagadro's number is

• 6.022
• 6.022 x 10^-23
• 6.022 x 23
• 6.022 x 10²³

What is the rounded molar mass of a mole of one hydrogen atom?

• 1 amu
• 2 amu
• 2 g
• 1 g

Stoichiometry measures chemical that ______, and _____, an given reaction

• come out of, go into
• go into, come out of
• equal, balance
• balance, equal

Tags

NGSS.HS-PS1-7

What is the Molar mass of one mole of Iron (Fe)?

• 55.93 amu
• 55.93 g
• 111.86 amu
• 111.86 g

What is the molar mass of one molecule of Nitrogen N₂?

• 14.01 amu
• 14.01 g
• 28.02 g
• 28.02 amu

Tags

NGSS.HS-PS1-7

What is the molar mass of a molar mass of Carbon Dioxide (CO₂)?

• 12 amu
• 12 g
• 44 g
• 44 amu

What is the Molar mass of the Baking Soda? (NaHCO₃)

• 84 g
• 84 amu
• 52 g
• 52 amu

If an atom of Fluorine has an atomic mass of 19 amu, it has a Molar mass of ____

• 19 lbs.
• 19 kg
• How am I supposed to know?
• 19 g

What is the atomic mass of one atom of Nitrogen?

• 14 amu
• 14 g
• 14 kg
• None of these

How many molecules are in 2.5 mol of NaCl?

• 1.51x10²³
• 146
• 4.15
• 1.51x10²⁴