Examine the two different types of balances provided in the laboratory. Starring

Question

Examine the two different types of balances provided in the laboratory. Starring with one of the balances, record the model, manufacturer and balance member in your notebook, Next, determine and record the mass of an empty weighing Place a rubber stopper in the weighing and record the mass of both, Determine the mass of the rubber stopper by the mass of the weighing from the combined mass of weighing and This work should be clearly shown in your notebook next to your mass data. sure to include on your mass. Repeat this procedure using the second type of balance. Finally, calculate the average of your two masses in your notebook. Most of the glassware in the lab been marked by the to indicate the volume contained by the glassware when filled to a certain level. The glassware by the differ greatly in the precision they indicate, depending on the type of the glassware and intended use. For example, and are marked with very values that serve as a rough guide to the volume in the container, Other places of glassware, and cylinders are marked precisely. The temperature (usually 20 degree C or temperature) is specified with volumetric glassware since the volume of a liquid changes with temperature (see Figure 1.2).

Explanation / Answer

The given apparatus are used in volumetric analysis in chemistry.

The first one is a measuring cylinder which helps to take required volumes of solutions

And the second one is the Standard flask which is used to prepare required concentrated solutions

And the last one is called as graduated pipette which helps in transferring of required quantities of solutions.

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