Mole to Mole Practice Quiz

What is the first thing you must do to solve a stoichiometry problem?

• Write a Balanced Equation
• Panic
• Write an Unbalanced Equation
• Ask for help

Balance the following reaction :
 
CaC₂(s)   +   H₂O(l)   -->   C₂H₂(g)   +   Ca(OH)₂(aq)

• 1,2,2,2
• 1,2,1,1
• 2,1,1,1
• 2,1,2,1

Tags

NGSS.HS-PS1-7

Using the following equation:
Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l)
How many moles of iron can be made from  6 moles H₂? 

• 4 moles Fe
• 6 moles Fe
• 9 moles Fe
• 2 moles Fe

Tags

NGSS.HS-PS1-7

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

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

• 3 mole

• 2 mole

• 1 mole

• 0.5 mole

For the Balanced Reaction: 3 Mg + 1 Fe₂O₃ → 3 MgO + 2 Fe; What is the Ratio of moles of MgO to moles Fe?

• 3 mol Mg : 2 mol Fe

• 2 mol Mg : 3 mol Fe

• 1 mol Fe : 2 mol Fe

• 3 mol MgO : 2 mol Fe

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

• 6
• 2
• 3
• 1

Tags

NGSS.HS-PS1-7

N₂ + 3F₂ ----> 2NF_{3
Given the equation above,  calculate how many moles of} N_{2 is needed to react with 5.65 moles of} F₂

• 5 mol N₂
• 2 mol N₂
• 1.88 mol N₂
• 15 mol N₂

How many moles of H₂O are produced by 4.8 moles of O₂?
2H₂ +O₂ -----> 2H₂O

• 9.6 mol H₂O
• 317 mol H₂O
• 906 mol H₂O
• 3.7 mol H₂O

N₂ + 3F₂ ----> 2NF_{3
Given the equation above,  calculate how many moles of} NF_{3 is produced from 5.65 moles of} F₂

• 0.26 mol NF₃
• 11.3 mol NF₃
• 3.77 mol NF₃
• 11.31 mol NF₃

How many moles of KOH are required to make 3.0 moles  of K₂SO_4?
H₂SO_{4  +}  2KOH -----> 2H₂O  +  K₂SO₄

• 3 mol KOH 
• 6 mol KOH 
• 18 mol KOH 
• 24 mol KOH