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Temple University Stoichiometry Questions

Question Description

I’m working on a science multi-part question and need guidance to help me understand better.

Stoichiometry

Select “Water” at the top and make a single water molecule.

  1. How many of each reactant were used?
  2. What is the mole ratio (how many of each reactant and product are there)?
  1. Now write it as a chemical reaction:

Ca(OH)2 + 2 HCl?CaCl2 + 2 H2O

Max out how many water molecules that can be made without leftovers/excess.

  1. How many of each reactant were used?
  1. How many products were produced?
  1. What is the mol ratio (how many of each reactant and product are there)?
  1. Now express it as a chemical equation:

Now max out every reactant.

  1. How many products were made?
  1. How many and what were the leftovers/excess?
  1. What is the limiting reactant?

Enter the following under reactants on the left (“Before Reaction”): 6 H2 and 4 O2

  1. Fill in the number of products and leftovers under “After Reaction” in the table below.

Products: Leftovers:

H2O

H2

O2

#

  1. How many H2 and O2 molecules do you need to make exactly 4 water molecules with no leftovers? H2 _____ O2 _____

Select Ammonia and Make a single ammonia molecule.

  1. How many of each reactant were used?
  2. What is the mol ratio?
  3. Write it as a chemical equation:

Find the max amount of ammonia that can be produced without any leftovers.

  1. How many of each reactant are used?
  2. How many ammonia molecules are produced?
  3. What is the mol ratio (how many of each reactant and product are there)?
  1. Write it as a chemical equation:

Now max all of the reactants.

  1. How many ammonia molecules are produced?
  2. How many of each leftover are there?
  3. What is the limiting reactant in this reaction?

Enter the following under reactants on the left (“Before Reaction”): 5 N2 and 5 H2

  1. Fill in the number of products and leftovers under “After Reaction” in the table below.

Products: Leftovers:

NH3

N2

H2

#

  1. How many N2 and H2 molecules do you need to make exactly 2 ammonia molecules with no leftovers? N2 _____ H2_____

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