Some base is added to the solution containing the litmus indicator.
Base is added to the beaker containing phenolphthalein.
Finally, base is added to the one with C16H7N4Na2O11S2H indicator.
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Some base is added to the solution containing the litmus indicator.
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Base is added to the beaker containing phenolphthalein.
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Finally, base is added to the one with C16H7N4Na2O11S2H indicator. |
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Notice the color changes when base is added to the acidic solutions containing these pH indicators.
