Stoichiometry Mole to Mole

N₂ +  3H₂ → 2NH₃ 
How many moles of hydrogen are needed to react with 2 moles of nitrogen?

• 6

• 2

• 3

• 1

Tags

NGSS.MS-PS1-5

How many moles of water can be produced if 6.5 moles H₂ are used?

• 4 moles

• 6.5 moles

• 16 moles

• 2 moles

Tags

NGSS.HS-PS1-7

Given the reaction: 4Al + 3O₂ --> 2Al₂O₃

How many moles of Aluminum oxide, Al₂O₃, can you produce if you have 2 moles of Al?

• 3 mole

• 2 mole

• 1 mole

• 0.5 mole

Tags

NGSS.HS-PS1-7

How many moles of ethane (C₂H₆) are required to produce 13.5 moles of water from the above reaction?

• 4.5 mol C₂H₆

• 27 mol C₂H₆

• 40.5 mol C₂H₆

• 81 mol C₂H₆

Tags

NGSS.HS-PS1-7

• 18 g

• 36 g

• 54 g

• 72 g

Tags

DOK Level 2: Skill/Concept

Which of the following best describes the mole concept?

• A measure of mass

• A measure of volume

• A measure of the amount of substance

• A measure of temperature

Tags

DOK Level 1: Recall

Which of the following dimensional analysis setups will correctly convert 27.76 g of Li to atoms of Li?

• A

• B

• C

• D

• 2 moles

• 5 moles

• 10 moles

• 20 moles

Tags

SCH3U.D.2.5

Calculate the number of moles in 3.13 x 10²⁰ atoms Zn.

• 1.88 x 10⁴⁴ mol Zn

• 5.2 x 10^-4 mol Zn

• 2.53 x 10⁵ mol Zn

• 2.05 x 10^-4 mol Zn

Tags

NGSS.HS-PS1-7

Which of the following dimensional analysis setups will correctly convert 4.00x10²³atoms of cobalt to moles of cobalt? How many moles of colbalt are there?

• setup B : 0.664 mol Co

• setup A: 2.41x10⁴⁷mol Co

• setup A : 0.664 mol Co

• setup B: 2.41x10⁴⁷mol Co