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Please Help! When dispensing 20mL using a 10-mL Class A pipet [with a calibrated volume of (10.00+/0.02)mL], what is the total volume dispensed and what

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When dispensing 20mL using a 10-mL Class A pipet [with a calibrated volume of (10.00+/0.02)mL], what is the total volume dispensed and what is the uncertainty in this volume? Report the answer as X.YZmL+/ - a.bc mL. (Example: 15.00mL+/ 0.01mL - Note the space before and after +/ sign and before mL )

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