Question

7. You are using a 10-ml blow-out pipette graduated in 1/10 ml. (Your pipette reads 0 at the highest marking on the stem.) You have sucked up 8.6 ml of liquid and you cannot put any back into the bottle even though you need to measure out only 6.5 ml. At what mark on the pipette is the meniscus of your liquid now located? If you release liquid from your pipette, at t what line should you stop? Draw the pipette and, using two arrows, indicate the start and stop points


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Answer #1

The present volume is 8.6ml. The required volume is 6.5 ml. So 2.1 ml is extra.

When we release the pipette we should stop at the point 2.1 ml.

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