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Flashcards in equipment list Deck (3)
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1
Q

Volumetric or standard flask (Class B)

A

• A 250 cm3 volumetric flask has an uncertainty of ±0.2 cm3 or 0.08%

2
Q

Pipette (Class B)

A

• A 25 cm3 pipette has an uncertainty of ±0.06 cm3 or 0.24%.

3
Q

When using apparatus with an analogue graduated scale,

A

the uncertainty is assumed to be
± half the smallest graduation. For example, for a burette graduated in divisions of 0.1 cm3
,
the uncertainty in each measurement is ±0.05 cm3
.