Volumetric pipettes are designed to deliver a very precise amount of liquid, but only if you O a. submerge the end of the pipette into the solution you are delivering. O b. allow the pipette to drain freely, and leave any residual solution in the pipette. Oc use the bulb to blow out any residual liquid left in the pipette. O d. hold the pipette at a 45 degree angle and ensure that all the liquid is delivered.

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