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Unformatted text preview: Used for: strong acid/weak base Thymol Blue pH range: 8.0 9.6 Used for: weak acid/strong base Practice: What color will a solution with a pH of 12 be if phenolphthalein is the indicator? A solution is blue in the presence of bromcresol green, and yellow in the presence of bromothymol blue. Is this solution acidic or basic? You are titrating KOH with H 2 CO 3 . What would be an appropriate indicator choice? Conclusions Indicators are used to signal the end of a neutralization reaction Indicators will be different colors at different pH levels Select an indicator based on what the endpoint of the titration will be Use reference table M!...
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- Spring '11