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# What is the pH of pure water?

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At 77 degrees Fahrenheit, the pH of pure water is approximately 7. The pH value describes the acidity or basicity of an aqueous solution. Acids have pH values of less than 7 while bases have pH values greater than 7. A pH value of 7 is neutral.

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Different types of water may have slightly higher or lower pH values than pure drinking water due to the minerals and gases present in them. Surface water may contain pH values of 6.5 to 8.5. Ground water has pH values of 6 to 8.5. Acidic water is corrosive and may damage metal pipes. Basic water is hard water and can form deposits on pipes.

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## Related Questions

• A:

According to the Hyperphysics Web page of Georgia State University, concentrated HCl has a pH of 0. The pH of HCl is highly dependent upon the concentration of HCl in water. The less concentrated the HCl solution, the higher its pH level.

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The pH of a solution with a 10^-8 mol/L hydrogen ion concentration is 8. This is because pH is based on a negative logarithmic scale. To convert between pH and hydrogen ion concentration, use this equation: pH = -log[H+], where [H+] is the concentration of hydrogen ions.

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A normal liver has a neutral pH of 7, which is the same pH as pure water, according to Scientific American. In a pH-neutral solution, there is an equal number of hydrogen and hydroxide ions.