Using universal indicator, what does pH 3 indicate?

Using universal indicator, what does pH 3 indicate?

• A. A Neutral solution
• B. A Basic solution
• C. An acidic solution with high H+ concentration
• D. A strongly acidic solution

Answer: (C)

pH measures how many hydrogen ions are in a solution. The lower the pH, the higher the [H+]. A pH of 3 is below 7, so the solution is acidic. It’s not neutral (pH 7) and not basic (above 7). In terms of acidity, pH 3 corresponds to a higher hydrogen ion concentration than neutral water—though it isn’t the most extreme acidity (that would be closer to pH 1 or 2). With a universal indicator, the color at pH 3 matches an acidic region, confirming the solution is acidic. So the best description is an acidic solution with relatively high H+ concentration.

pH measures how many hydrogen ions are in a solution. The lower the pH, the higher the [H+]. A pH of 3 is below 7, so the solution is acidic. It’s not neutral (pH 7) and not basic (above 7). In terms of acidity, pH 3 corresponds to a higher hydrogen ion concentration than neutral water—though it isn’t the most extreme acidity (that would be closer to pH 1 or 2). With a universal indicator, the color at pH 3 matches an acidic region, confirming the solution is acidic. So the best description is an acidic solution with relatively high H+ concentration.