Addition of the indicator methyl orange to an unknown solution leads to a yellow color. The addition
Question:
Addition of the indicator methyl orange to an unknown solution leads to a yellow color. The addition of bromthymol blue to the same solution also leads to a yellow color.
(a) Is the solution acidic, neutral, or basic?
(b) What is the range (in whole numbers) of possible pH values for the solution?
(c) Is there another indicator you could use to narrow the range of possible pH values for the solution?
Step by Step Answer:
a The solution is acidic Because of the indicators the pH must be b...View the full answer
Chemistry The Central Science
ISBN: 9780321910417
13th Edition
Authors: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus
Related Video
A substance that alters color in solution over a constrained range of pH values is known as a pH indicator or acid-base indicator. The indicator chemical just needs to alter color slightly in order to be noticed. Indicators work on the basis that they react with water to produce the hydrogen cation H+ or hydronium ion H3O+. The indicator molecule\\\'s color changes as a result of the reaction. Since indicators have distinct color ranges for color change, they can occasionally be combined to provide color changes over a wider pH range.
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