Question Video: Determining the Range of pH Values of Basic Solutions Chemistry

In which range of values would the pH of a basic solution be found?

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Video Transcript

In which range of values would the pH of a basic solution be found?

pH is a measure of acidity. Typically, solutions have pH values between zero and 14. The acidity of a solution increases as its pH decreases. And a solution’s basicity increases as its pH increases. We describe any solution whose pH is greater than the pH of pure water as a basic solution. Pure water at 25 degrees Celsius has a pH of seven, and we consider this neutral. So, any solution with a pH greater than seven is basic. The question’s asking us for a range of values not a single value, so we’re looking for a range that’s open between two values or closed in reference to one value.

While the pH scale is regularly only displayed up to pH 14, it doesn’t actually stop there. So the best we can do is say that the pH of a basic solution is greater than seven.

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