Stoichiometry
Breakout
Mrs. Salgado
Intro
Map (Get some help with stoich)
Intro
In this breakout, you will solve stoichiometry problems in order recover the uranium stolen from Mrs. Salgado's lab. You will need to write down the numbers you encounter along th way so that you know which locker to look in at the end. Good Luck!
Map
Get help here
Click on the various map points to get help with stoichiometry!
· Return to Question 1
· Return to Question 4
· Return to Question 2
· Return to Question 3
Answer the question and you will discover the direction of the next stage
Calculate how many moles of NO2 form when 15.2 g of N2O5 reacts completely according to the equation2 N2O5 (g) --> 4 NO2 + O2 (g)
0.281 moles
0.182 moles
0.821 moles
Mission 1
Misión 3
Locked
Misión 2
Locked
Misión 4
Locked
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Enter the password
Mission 2
Misión 3
Completed
Locked
Misión 4
Locked
This page is password protected
Enter the password
22.8g Li
22.8g Br2
2.17g Li
Lithium reacts with bromine to produce lithium bromide. If 25.0 g of lithium reacts with 25.0g bromine, how much of the excess reactant is left-over (not used up in the reaction)?2 Li + Br2 --> 2 LiBr
b. 4 moles of water are produced for every mole of hydrogen reacted.
a. 2 moles of hydrogen react with 1 mole of oxygen
c. 2 moles of hydrogen react with 2 moles of oxygen
How would you read the following equation?2 H2 + O2 --> 2 H2O
LR: Pb2+, TY: 34.5 g PbCl2, %: 85.3
LR: KCl, TY: 43.5 g PbCl2, %: 35.8
LR: Pb2+, TY: 54.3 g PbCl2, %: 58.3
Lead II ions can be removed from solution according to the equationPb2+ (aq) + 2 KCl (aq) --> PbCl2 (s) + 2 K+ (aq) When 28.5 g of KCl is added to a solution containing 25.7 g Pb2+, a precipitate of PbCl2 forms. The solid is filtered and found to have a mass of 29.4 g. Determine the limiting reactant, theoretical yield of PbCl2, and the percent yield of the reaction.
This page is password protected
Enter the password
Misión 2
Mission 3
Completed
Completed
Misión 4
Locked
Hope you wrote those numbers down...
Answer the question and you will discover the following clue
In a stoich problem, the mole ratios are found in the...
coefficients
molar mass
subscripts
Write down the answer to the problem below, you'll need it.
14+3
Misión 2
Misión 3
Completed
Completed
Completed
Mission 4
Enter the number from the last clue multiplied by 3.
Wrong answer!
Try again!
Hmm...what is the section number of our class?
Stoichiometry
Jessdie Salgado
Created on March 31, 2026
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Transcript
Stoichiometry
Breakout
Mrs. Salgado
Intro
Map (Get some help with stoich)
Intro
In this breakout, you will solve stoichiometry problems in order recover the uranium stolen from Mrs. Salgado's lab. You will need to write down the numbers you encounter along th way so that you know which locker to look in at the end. Good Luck!
Map
Get help here
Click on the various map points to get help with stoichiometry!
· Return to Question 1
· Return to Question 4
· Return to Question 2
· Return to Question 3
Answer the question and you will discover the direction of the next stage
Calculate how many moles of NO2 form when 15.2 g of N2O5 reacts completely according to the equation2 N2O5 (g) --> 4 NO2 + O2 (g)
0.281 moles
0.182 moles
0.821 moles
Mission 1
Misión 3
Locked
Misión 2
Locked
Misión 4
Locked
This page is password protected
Enter the password
Mission 2
Misión 3
Completed
Locked
Misión 4
Locked
This page is password protected
Enter the password
22.8g Li
22.8g Br2
2.17g Li
Lithium reacts with bromine to produce lithium bromide. If 25.0 g of lithium reacts with 25.0g bromine, how much of the excess reactant is left-over (not used up in the reaction)?2 Li + Br2 --> 2 LiBr
b. 4 moles of water are produced for every mole of hydrogen reacted.
a. 2 moles of hydrogen react with 1 mole of oxygen
c. 2 moles of hydrogen react with 2 moles of oxygen
How would you read the following equation?2 H2 + O2 --> 2 H2O
LR: Pb2+, TY: 34.5 g PbCl2, %: 85.3
LR: KCl, TY: 43.5 g PbCl2, %: 35.8
LR: Pb2+, TY: 54.3 g PbCl2, %: 58.3
Lead II ions can be removed from solution according to the equationPb2+ (aq) + 2 KCl (aq) --> PbCl2 (s) + 2 K+ (aq) When 28.5 g of KCl is added to a solution containing 25.7 g Pb2+, a precipitate of PbCl2 forms. The solid is filtered and found to have a mass of 29.4 g. Determine the limiting reactant, theoretical yield of PbCl2, and the percent yield of the reaction.
This page is password protected
Enter the password
Misión 2
Mission 3
Completed
Completed
Misión 4
Locked
Hope you wrote those numbers down...
Answer the question and you will discover the following clue
In a stoich problem, the mole ratios are found in the...
coefficients
molar mass
subscripts
Write down the answer to the problem below, you'll need it.
14+3
Misión 2
Misión 3
Completed
Completed
Completed
Mission 4
Enter the number from the last clue multiplied by 3.
Wrong answer!
Try again!
Hmm...what is the section number of our class?