The Reaction Quotient Video Lessons

Example

# Problem: What pH is needed to produce this value of Q if the concentration and pressure values are[Br2] = 2.50×10−4M ,[Br− ]= 11.90M ,[SO42−] = 8.15M , andPSO2 = 1.25×10−5 atm Express your answer numerically to two decimal places.Q = 1.6×10−26

###### FREE Expert Solution

We are being asked to determine the pH of the solution.

The reaction quotient, Q, can be calculated like an equilibrium constant with the formula shown below:

$\overline{){\mathbf{Q}}{\mathbf{=}}\frac{\mathbf{products}}{\mathbf{reactants}}}$

Let’s calculate the Reaction Quotient (Q) using the given concentrations:

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###### Problem Details

What pH is needed to produce this value of Q if the concentration and pressure values are

[Br2] = 2.50×10−4M ,

[Br− ]= 11.90M ,

[SO42−] = 8.15M , and

PSO2 = 1.25×10−5 atm