In a volumetric pipette which has an uncertainty of 0. 01 cm³, for a measurement of 0. 20cm3, the lowest possible value is 0.195 cm³
and highest possible value is 0.205 cm³.
Measurement uncertainty = 0.01 cm³
Error = uncertainty value/2 = 0.01/2 = 0.005 cm³
The formula to calculate the possible values for a volumetric pipette with uncertainty0.01 cm³ is give below.
Possible values = measured value ± Error.
Lowest possible value = 0.20 - 0.005
= 0.195 cm³
Highest Possible Value = 0.20 + 0.005
= 0.205 cm³
Thus, for a volumetric pipette, the lowest possible value is 0.195 cm³ and highest possible value is 0.205 cm³.
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