Titration of an acid in aqueous solution with a base. In this case the acid is hydrochloric acid (HCL), with phenolphthalein as an indicator, and the base is sodium hydroxide (NaOH). A change in the color of the indicator dye signals the equivalence point.
| px | px | dpi | = | cm | x | cm | = | MB |
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TOP22278471
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達志影像
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