a. Remove the drop suspended from a pipet tip by. b. The finger used to control

Question

a. Remove the drop suspended from a pipet tip by. b. The finger used to control the delivery of liquid from a pipet is the OS c. What should be done with the last bit of liquid remaining in the pipet after delivery? d. Most pipets are calibrated as TD 20C. Define TD; what is its meaning regarding the volume of liquid a pipet delivers? 7. Experimental Procedure, Part C.1. The density of diamond is 3.51 g/cm, and the density of platinum is 21.43 g/em. If equal masses of diamond and platinum are transferred to equal volumes of water in separate graduated cylinders, which graduated cylinder would have the greatest volume change? Explain or show with a sample calculation. & Experimental Procedure, Part C3. The mass of a beaker is 5.333 g. After 5.00 mL of a concentrated hydrochloric acid solution is pipetted into the beaker, the combined mass of the beaker and the hydrochloric acid sample is 11.229 & From the data, what is the measured density of the hydrocbloric acid solution? 56 Basic Laboratory Operations

Explanation / Answer

a. Touching the tip to the wall of the beaker.

b. Index finger

c. it should be disposed to the waste container

d.TD stands for tube delivery. It means pipet is created for a specified volume.

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