# Problem: Determine the pH of each of the following two-component solutions.6.00×10−2 M in HI and 8.50×10−3 M in HF

###### FREE Expert Solution

We are being asked to determine the pH of the following two-component solution

6.00 × 10−2 M in HI and 8.50 × 10−3 M in HF

Recall that the pH and pOH of a compound determine its acidity and basicity.

• pH

▪ pH stands for the negative logarithmic function of hydronium ion concentration
can be calculated using the following equation:

Take note that:         [H+] = [H3O+]

Remember that:

• HI is a strong acid  completely dissociates in solution:
• HI → H+ + I-
• [HI] = [H+]
• HF is a weak acid  → partially dissociates in solution:
• HI ⇋ H+ + F-
• [HF] > [H+]

This means that for this mixture, the pH will depend on the concentration of the strong acid, HI:

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###### Problem Details

Determine the pH of each of the following two-component solutions.

6.00×10−2 M in HI and 8.50×10−3 M in HF