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23 Stoichiometry steps

Last updated over 4 years ago
9 questions
A major part of stoichiometry is deciding what steps need to be taken to get from your given amount to your wanted amount. Your template is designed to help you make those choices and to set up each conversion factor correctly. We are going to start with just determining what steps need to be taken. Example: grams of given --> moles of given --> moles of wanted --> liters of wanted. A conversion factor has to connect each of the steps, or your answer may be wrong.

You pick out the steps that you will need to write out to reach your solution (answer).

Continue and see how you do. Watch below if you want a demo on how it works.

Note: answers progress from red, orange, yellow, green. It takes more than one correct placement to get it to orange, and it turns green before you get them all correct. Watch your points to see if you get each correct.
5

Calculate the moles of hydrogen chloride produced from 10 moles of hydrogen. H2 + Cl2 --> 2 HCl
What steps would you write out to solve this problem?
Not all categories have to have items. Example: if you only need two steps to reach the solution, steps 3 and 4 will be empty.

  • mass of G
  • mol G
  • Representative particles of G
  • Volume in L of G at STP
  • Mol W
  • Representative particles of W
  • Mass of W
  • Volume in L of W at STP
  • Step 1
  • Step 2
  • Step 3
  • Step 4
  • Solution (answer to the question)
5

Calculate the number of liters of hydrogen chloride produced from 10 moles of hydrogen. H2 + Cl2 --> 2 HCl
What steps would you write out to solve this problem?
Not all categories have to have items. Example: if you only need two steps to reach the solution, steps 3 and 4 will be empty.

Note: the dot will turn green when you get 3/5 correct, but keep going until all steps needed are in place.

  • mass of G
  • mol G
  • Representative particles of G
  • Volume in L of G at STP
  • Mol W
  • Representative particles of W
  • Mass of W
  • Volume in L of W at STP
  • Step 1
  • Step 2
  • Step 3
  • Step 4
  • Solution (answer to the question)
5

Calculate the number of moles of hydrogen chloride produced from 5.6 g of hydrogen. H2 + Cl2 --> 2 HCl
What steps would you write out to solve this problem?
Not all categories have to have items. Example: if you only need two steps to reach the solution, steps 3 and 4 will be empty.
Note: the dot will turn green when you get 3/5 correct, but keep going until all steps needed are in place.

  • mass of G
  • mol G
  • Representative particles of G
  • Volume in L of G at STP
  • Mol W
  • Representative particles of W
  • Mass of W
  • Volume in L of W at STP
  • Step 1
  • Step 2
  • Step 3
  • Step 4
  • Solution (answer to the question)
5

8.3 x 1024 molecules of hydrogen chloride will come from how many moles of hydrogen?
H2 + Cl2 --> 2 HCl
What steps would you write out to solve this problem?
Not all categories have to have items. Example: if you only need two steps to reach the solution, steps 3 and 4 will be empty.
Note: the dot will turn green when you get 3/5 correct, but keep going until all steps needed are in place.

  • mass of G
  • mol G
  • Representative particles of G
  • Volume in L of G at STP
  • Mol W
  • Representative particles of W
  • Mass of W
  • Volume in L of W at STP
  • Step 1
  • Step 2
  • Step 3
  • Step 4
  • Solution (answer to the question)
5

Calculate the number of grams of nitrogen dioxide that are produced from 4 moles of nitric oxide.
2NO + O2 --> 2NO2
What steps would you write out to solve this problem?
Not all categories have to have items. Example: if you only need two steps to reach the solution, steps 3 and 4 will be empty.
Note: the dot will turn green when you get 3/5 correct, but keep going until all steps needed are in place.

  • mass of G
  • mol G
  • Representative particles of G
  • Volume in L of G at STP
  • Mol W
  • Representative particles of W
  • Mass of W
  • Volume in L of W at STP
  • Step 1
  • Step 2
  • Step 3
  • Step 4
  • Solution (answer to the question)
5

Calculate the number of grams of nitrogen dioxide that are produced from 5.0 g of nitric oxide.
2NO + O2 --> 2NO2
What steps would you write out to solve this problem?
Not all categories have to have items. Example: if you only need two steps to reach the solution, steps 3 and 4 will be empty.
Note: the dot will turn green when you get 3/5 correct, but keep going until all steps needed are in place.

  • mass of G
  • mol G
  • Representative particles of G
  • Volume in L of G at STP
  • Mol W
  • Representative particles of W
  • Mass of W
  • Volume in L of W at STP
  • Step 1
  • Step 2
  • Step 3
  • Step 4
  • Solution (answer to the question)
Now that you can put the steps in order, practice identifying the variables so you set each step up correctly.

Note: answers progress from red, orange, yellow, green. It takes more than one correct placement to get it to orange, and it turns green before you get them all correct. Watch your points to see if you get each correct.
5

Calculate the moles of hydrogen chloride produced from 10 moles of hydrogen. H2 + Cl2 --> 2 HCl

Identify each value (specific to the problem) by moving it to the correct variable (what's on the template).

Note: the dot will turn green when you get 4/5 correct, but keep going until all steps needed are in place.

  • H2
  • Cl2
  • HCl
  • 1 mol
  • 2 mol
  • 10 mol
  • G
  • W
  • a mol
  • b mol
  • mol
6

Calculate the number of moles of hydrogen chloride produced from 5.6 g of hydrogen. H2 + Cl2 --> 2 HCl
Identify each value (specific to the problem) by moving it to the correct variable (what's on the template).
Note: the dot will turn green when you get 5/6 correct, but keep going until all steps needed are in place.

  • H2
  • Cl2
  • HCl
  • 1 mol
  • 2 mol
  • 5.6 g
  • 2.0 g
  • G
  • W
  • a mol
  • b mol
  • given mass of G
  • mass G
7

Calculate the number of grams of nitrogen dioxide that are produced from 5.0 g of nitric oxide.
2NO + O2 --> 2NO2
Identify each value (specific to the problem) by moving it to the correct variable (what's on the template).
Note: the dot will turn green when you get 6/7 correct, but keep going until all steps needed are in place.

  • NO
  • O2
  • NO2
  • 1 mol
  • 2 mol
  • 5.0 g
  • 32.0 g
  • 30.0 g
  • 46.0 g
  • given mass of
  • G
  • mass G
  • a mol
  • W
  • b mol
  • mass W