The pH Scale and Water Properties
Explore the pH scale, distilled water pH, hydrogen ion concentration, and the molecular weight of water in this informative content. Learn about the properties of water, the acidity levels, and factors affecting pH levels.
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Presentation Transcript
Life Science Water s the Matter Measuring pH Pre-Test
Which choice is correct about the pH scale? A. The pH scale measures the concentration of Hydrogen ions in a solution B. The pH scale goes from -14 to 14 C. Lower numbers on the pH scale are more basic and higher numbers are more acidic D. pH of 10 is a neutral solution
Knowing that distilled water is a pure form of water, which doesn't contain any substances that would either raise or lower its pH from a neutral level, what is the pH of distilled water? A. 0.0 B. 3.0 C. 7.0 D. 14.0
Which of the following can change the concentration of hydrogen ions in water? A. Weathering of rocks B. Carbon dioxide concentrations C. Precipitation (especially acid rain) D. All of the above
A pH of 3 is how many more times acidic than a pH of 4? A. 1 B. 10 C. 100 D. 1000
What is the molecular weight of water? A. 18 grams B. 30 grams C. 48 grams D. 100 grams
