Question: Thymol blue indicator has two pH ranges. It changes color from red to yellow in the pH range from 1.2 to 2.8, and from yellow
Thymol blue indicator has two pH ranges. It changes color from red to yellow in the pH range from 1.2 to 2.8, and from yellow to blue in the pH range from 8.0 to 9.6. What is the color of the indicator in each of the following situations?
(a) The indicator is placed in 350.0 mL of 0.205 M HCl.
(b) To the solution in part (a) is added 250.0 mL of 0.500 M NaNO2.
(c) To the solution in part (b) is added 150.0 mL of 0.100 M NaOH.
(d) To the solution in part (c) is added 5.00 g Ba(OH)2.
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a The indicator is placed in 3500 mL of 0205 M HCl To determine the color of the indicator we need to calculate the pH of the solution Molarity M mole... View full answer
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