why it is necessary to rinse the pipette washing with water
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When you're cleaning your glassware, you use water to rinse it off. If the burette is not completely dry by the time you use it, the remaining traces of water on the inside will make your titrant more dilute and thereby change its concentration.
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the burette is then used without rising if with the solution that it is going to be filled with the results of they anylysing exercise will nit precise and accurate
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