Check all the ways listed below that ensure accurate reading of volume from a graduated pipette. tapping the base of the pipette
on the table using subtraction to determine the volume dispensed making sure that you read the volume with the liquid inside the pipette at eye level reading only the final volume of liquid after dispensing ensuring that air bubbles are not in the column of liquid inside the pipette
using subtraction to determine the volume dispensed.
making sure that you read the volume with the liquid inside the pipette at eye level.
ensuring that air bubbles are not in the column of liquid inside the pipette.
Explanation:
The pipette is a widely used laboratory material, and its main function is to transport precise quantities of liquid material. They are used, for example, in various medical examinations and in the study of molecular biology. There are several types, such as the graduated pipette, the volumetric pipette, the automatic pipette and also the micropipettes (for very small amounts of liquid). Using a pipette requires careful attention not to use wrong volumes of liquid to be used. For this reason, it is correct to say that when handling a pipette we must:
using subtraction to determine the volume dispensed.
making sure that you read the volume with the liquid inside the pipette at eye level.
ensuring that air bubbles are not in the column of liquid inside the pipette.
In the fitt principle, the choice of swimming instead of
walking would be an example of Type. Fitt principle is a set of rules that must
be adhered to in order to benefit from any form of fitness training program. These
rules relate to the Frequency, Intensity, Type and Time (FITT) of exercise. The
type of exercise that is done is the last part of the Fitt principle.
Yes it was. Since he believed in continental drift, he believed that the continents moved ever so slowly towards each other and away from each other. Therefore whenever the two continents collide due to continental drift they form mountain ranges.
