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As and a level stoichiometry- mole to mole

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Steps to solve mole-to-mole problems:

Step1: Write the balanced equation.

Step2: Write the molar ratio.

Step3: Look at the given and the required.

Step4: Use the molar ratio to find the moles of the required compound.

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As and a level stoichiometry- mole to mole

  1. 1. What do we need to know to solve the mole to mole problem: •  We need to know how to balance the chemical equations. •  Extract the Mole ratio from the equation. •  Dimensional analysis.
  2. 2. Example -1: Suppose we have 3.00 mol of N2 reacting with sufficient H2, how many moles of NH3 will be produced? Step1: Write the balanced equation. Solution:
  3. 3. Step2: Write the molar ratio. Step3: Look at the given and the required. Suppose we have 3.00 mol of N2 reacting with sufficient H2, how many moles of NH3 will be produced? Step4: Use the molar ratio to find the moles of the required compound.
  4. 4. Steps: Ø  Step1: Write the balanced equation. Ø  Step2: Write the molar ratio. Ø  Step3: Look at the given and the required. Ø  Step4: Use the molar ratio to find the moles of the required compound. Example 2: We want to produce 8 mole of NH3. How many moles of nitrogen would be required?
  5. 5. Summery: Steps for mole to mole stoichiometry: Ø  Step1: Write the balanced equation. Ø  Step2: Write the molar ratio. Ø  Step3: Look at the given and the required. Ø  Step4: Use the molar ratio to find the moles of the required compound.

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