section 16.2 determining the acidity of a solution 1.to understand ph and poh 2.to learn to find ph...
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![Page 1: Section 16.2 Determining the Acidity of a Solution 1.To understand pH and pOH 2.To learn to find pH and pOH for various solutions 3.To use a calculator](https://reader036.vdocuments.site/reader036/viewer/2022082711/56649ec85503460f94bd58c7/html5/thumbnails/1.jpg)
Section 16.2
Determining the Acidity of a Solution
1. To understand pH and pOH
2. To learn to find pH and pOH for various solutions
3. To use a calculator to find pH
4. To learn methods for measuring pH of a solution
5. To learn to calculate the pH of strong acids
Objectives
![Page 2: Section 16.2 Determining the Acidity of a Solution 1.To understand pH and pOH 2.To learn to find pH and pOH for various solutions 3.To use a calculator](https://reader036.vdocuments.site/reader036/viewer/2022082711/56649ec85503460f94bd58c7/html5/thumbnails/2.jpg)
Section 16.2
Determining the Acidity of a Solution
A. The pH Scale
• The “p scale” is used to express small numbers.• pH = log [H+]
![Page 3: Section 16.2 Determining the Acidity of a Solution 1.To understand pH and pOH 2.To learn to find pH and pOH for various solutions 3.To use a calculator](https://reader036.vdocuments.site/reader036/viewer/2022082711/56649ec85503460f94bd58c7/html5/thumbnails/3.jpg)
Section 16.2
Determining the Acidity of a Solution
A. The pH Scale
![Page 4: Section 16.2 Determining the Acidity of a Solution 1.To understand pH and pOH 2.To learn to find pH and pOH for various solutions 3.To use a calculator](https://reader036.vdocuments.site/reader036/viewer/2022082711/56649ec85503460f94bd58c7/html5/thumbnails/4.jpg)
Section 16.2
Determining the Acidity of a Solution
A. The pH Scale
• Because the pH scale is a log scale based on 10, the pH changes by 1 for every power of 10 change in the [H+].
![Page 5: Section 16.2 Determining the Acidity of a Solution 1.To understand pH and pOH 2.To learn to find pH and pOH for various solutions 3.To use a calculator](https://reader036.vdocuments.site/reader036/viewer/2022082711/56649ec85503460f94bd58c7/html5/thumbnails/5.jpg)
Section 16.2
Determining the Acidity of a Solution
A. The pH Scale
![Page 6: Section 16.2 Determining the Acidity of a Solution 1.To understand pH and pOH 2.To learn to find pH and pOH for various solutions 3.To use a calculator](https://reader036.vdocuments.site/reader036/viewer/2022082711/56649ec85503460f94bd58c7/html5/thumbnails/6.jpg)
Section 16.2
Determining the Acidity of a Solution
A. The pH Scale
• pOH scale
pOH = log [OH]
• pH + pOH = 14.00
![Page 7: Section 16.2 Determining the Acidity of a Solution 1.To understand pH and pOH 2.To learn to find pH and pOH for various solutions 3.To use a calculator](https://reader036.vdocuments.site/reader036/viewer/2022082711/56649ec85503460f94bd58c7/html5/thumbnails/7.jpg)
Section 16.2
Determining the Acidity of a Solution
A. The pH Scale
![Page 8: Section 16.2 Determining the Acidity of a Solution 1.To understand pH and pOH 2.To learn to find pH and pOH for various solutions 3.To use a calculator](https://reader036.vdocuments.site/reader036/viewer/2022082711/56649ec85503460f94bd58c7/html5/thumbnails/8.jpg)
Section 16.2
Determining the Acidity of a Solution
B. Measuring pH
• Indicators – substances that exhibit different colors in acidic and basic solutions
– In an acid solution the indicator will be in the HIn form. – In a basic solution the indicator will be in the In form.
![Page 9: Section 16.2 Determining the Acidity of a Solution 1.To understand pH and pOH 2.To learn to find pH and pOH for various solutions 3.To use a calculator](https://reader036.vdocuments.site/reader036/viewer/2022082711/56649ec85503460f94bd58c7/html5/thumbnails/9.jpg)
Section 16.2
Determining the Acidity of a Solution
B. Measuring pH
• Other methods
– Indicator paper – pH meter
![Page 10: Section 16.2 Determining the Acidity of a Solution 1.To understand pH and pOH 2.To learn to find pH and pOH for various solutions 3.To use a calculator](https://reader036.vdocuments.site/reader036/viewer/2022082711/56649ec85503460f94bd58c7/html5/thumbnails/10.jpg)
Section 16.2
Determining the Acidity of a Solution
C. Calculating the pH of Strong Acid Solutions
• Determine the [H+]. • pH = log[H+]