Practice question · Put in order
Arrange the steps of an ICE-table calculation in the order you would perform them.
- Solve for x and back-substitute to get each concentration
- Write the equilibrium concentrations and substitute into K
- Enter the initial concentrations
- Express the changes in terms of x, using the stoichiometric ratios
- Write the balanced equation and the equilibrium expression
Hints
- Nothing can be tabulated before the balanced equation is known.
- The unknown x must be solved for only after it appears inside the constant expression.
Show the answer
- Write the balanced equation and the equilibrium expression
- Enter the initial concentrations
- Express the changes in terms of x, using the stoichiometric ratios
- Write the equilibrium concentrations and substitute into K
- Solve for x and back-substitute to get each concentration
Why
The balanced equation fixes both the expression and the coefficient ratios used for the changes. Only once the equilibrium row is substituted into does a solvable equation in appear.
Practise Chemical Equilibrium
The app has 4 more questions on this lesson, and keeps your place in the course. Chemistry I is free to start.
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