Question

One type of this technique uses dyes like Fast Sulphon Black or (20[1])Murexide. (20[2])This (20[1]0[1])technique (20[1])is paired with calorimetry (20[2])to measure the binding (20[1])of small molecules (20[1])to (20[1])proteins (20[1])at (20[1])constant temperature. This (20[1])technique is performed after Kjeldahl ("KELL-dal") digestion (20[1])to measure (20[1])a sample's (0[1])nitrogen content. (20[2])A form of this (20[1])technique (20[1])reacts thiosulfate (20[2]0[1])with (20[1])a mixture of manganese and iodide (20[3])to determine oxygen concentration (20[1])in the (20[2])(*) Winkler test. (10[4])The "complexometric" type (10[1])of this technique uses EDTA to chelate ("KEE-late") metal ions out of solution. This technique may use an indicator (10[1])such as (10[2])phenolphthalein (10[2])("FEE-nawl-THAL-een") to detect (10[1])a change in pH (10[1])at the equivalence point. For 10 points, name this technique in which a buret ("byur-ET") is used to add a solution drop by drop. (10[2])■END■

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