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Chapter 14: Problem 57

Calculate the concentration of an aqueous HI solution that has \(\mathrm{pH}=2.50 .\) HI is a strong acid.

Short Answer

Expert verified
The concentration of the aqueous HI solution can be calculated using the given pH value and the formula [H鈧僌鈦篯 = 10^(-pH). With a pH of 2.50, [H鈧僌鈦篯 鈮� 3.16 脳 10鈦宦� M. Since HI is a strong acid and dissociates completely in water, the concentration of the HI solution is approximately 3.16 脳 10鈦宦� M.

Step by step solution

01

Understand the definition of pH

pH is defined as the negative logarithm of the H鈧僌鈦� ion concentration: pH = -log鈧佲個([H鈧僌鈦篯) We are given the pH value (2.50), and we need to find the concentration of the H鈧僌鈦� ions, represented as [H鈧僌鈦篯.
02

Calculate the concentration of H鈧僌鈦� ions

To find [H鈧僌鈦篯, we can use the given pH value by rearranging the pH formula: [H鈧僌鈦篯 = 10^(-pH) Substitute the given pH value (2.50) into the formula: [H鈧僌鈦篯 = 10^(-2.50) Calculate the concentration of H鈧僌鈦� ions: [H鈧僌鈦篯 鈮� 3.16 脳 10鈦宦� M
03

Determine the concentration of the HI solution

Since HI is a strong acid, it dissociates completely in water. That means that the concentration of H鈧僌鈦� ions is equal to the concentration of the HI solution. Therefore, the concentration of the aqueous HI solution is approximately 3.16 脳 10鈦宦� M.

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Most popular questions from this chapter

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