Order these chemical species by increasing pH of an 0.1 M aqueous solution of each. That is, imagine making an 0.1 M solution of each species. Select 1 next to the species that makes the solution with the lowest pH. Select 2 next to the species that makes the solution with the next higher pH, and so on. Notice that some of the rankings have been filled in for you already. Also notice that water is on the list. For that particular case, just compare the pH of pure water to the pH of the other solutions. Note for advanced students: for all charged species, you may assume the necessary counterions act as neither acids nor bases.

Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter18: Acids And Bases
Section: Chapter Questions
Problem 105A
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**Order these chemical species by increasing pH of an 0.1 M aqueous solution of each.**

**Instructions:**
Imagine making an 0.1 M solution of each species. Select 1 next to the species that makes the solution with the lowest pH. Select 2 next to the species that makes the solution with the next higher pH, and so on.

**Note:** Some of the rankings have been filled in for you already. Also notice that water is on the list. For water, just compare the pH of pure water to the pH of the other solutions.

**For Advanced Students:** For all charged species, you may assume the necessary counterions act as neither acids nor bases.

**Table:**

| Species | Relative pH of 0.1 M Aqueous Solution |
|---------|---------------------------------------|
| H₃O⁺   | (Choose one)                          |
| HClO₂  | 3                                     |
| HCOOH  | (Choose one)                          |
| HCOO⁻  | 8 (highest)                           |
| H₂O    | 5                                     |
| SO₄²⁻  | (Choose one)                          |
| ClO₂⁻  | (Choose one)                          |
| HSO₄⁻  | 2                                     |

**Explanation of Figure:**
The table above lists various chemical species and their relative pH values in a 0.1 M aqueous solution. You need to rank these species from 1 to 8, where 1 corresponds to the lowest pH (most acidic) and 8 corresponds to the highest pH (most basic). Some values have already been provided to guide you.
Transcribed Image Text:**Order these chemical species by increasing pH of an 0.1 M aqueous solution of each.** **Instructions:** Imagine making an 0.1 M solution of each species. Select 1 next to the species that makes the solution with the lowest pH. Select 2 next to the species that makes the solution with the next higher pH, and so on. **Note:** Some of the rankings have been filled in for you already. Also notice that water is on the list. For water, just compare the pH of pure water to the pH of the other solutions. **For Advanced Students:** For all charged species, you may assume the necessary counterions act as neither acids nor bases. **Table:** | Species | Relative pH of 0.1 M Aqueous Solution | |---------|---------------------------------------| | H₃O⁺ | (Choose one) | | HClO₂ | 3 | | HCOOH | (Choose one) | | HCOO⁻ | 8 (highest) | | H₂O | 5 | | SO₄²⁻ | (Choose one) | | ClO₂⁻ | (Choose one) | | HSO₄⁻ | 2 | **Explanation of Figure:** The table above lists various chemical species and their relative pH values in a 0.1 M aqueous solution. You need to rank these species from 1 to 8, where 1 corresponds to the lowest pH (most acidic) and 8 corresponds to the highest pH (most basic). Some values have already been provided to guide you.
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