Which piece of glassware would be best to choose to accurately deliver 20.00 ml of solution?<\/p>\n\n\n\n
The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n Correct Answer: A 20.00 mL volumetric pipette<\/strong><\/p>\n\n\n\n When precision and accuracy are essential in delivering a fixed volume of liquid, volumetric pipettes<\/strong> are the gold standard in laboratory glassware. Specifically, a 20.00 mL volumetric pipette<\/strong> is designed to deliver exactly 20.00 mL of liquid with high accuracy and very low uncertainty (often \u00b10.03 mL or better, depending on calibration and class).<\/p>\n\n\n\n Volumetric pipettes are calibrated to deliver (TD)<\/strong> a specific volume at a particular temperature (usually 20\u00b0C). They have a single graduation mark<\/strong>, which helps minimize user error. Unlike graduated cylinders or beakers, which offer flexibility at the expense of precision, volumetric pipettes are ideal when accuracy is more important than versatility.<\/p>\n\n\n\n Here\u2019s how other common glassware compares:<\/p>\n\n\n\n Therefore, if your task is to deliver exactly 20.00 mL of a solution<\/strong>, especially in quantitative analysis or titration, the 20.00 mL volumetric pipette<\/strong> is the best choice due to its precision, narrow error margin, and purpose-specific design.<\/p>\n\n\n\n
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