Simply because it's stable, and it's pH neutral.
A water bath is used in chemical experiments to provide a stable and uniform temperature environment for samples. This helps to control the temperature of reactions or facilitate heat-sensitive experiments. The water bath also helps to reduce evaporation and maintain a constant temperature throughout the experiment.
yes all experiments need to have a control
In this experiment, the control group would be the penny! The independent variable is the substance/water on the penny, and the dependent is how many drops the penny takes.
All properly-designed experiments should have some sort of control.
The answer will depend on what "these" experiments are!
But of course you are!
The control group gives you something to compare the results to.
control group & variable
experimental control
Red blood cells are good test subjects for osmosis experiments because they lack a nucleus and organelles, making them more sensitive to changes in their environment. Their cell membrane is permeable to water and small solutes, allowing for easy observation of water movement during osmosis. Additionally, red blood cells are readily available and can be easily collected for experiments.
Limitations are factors that you cannot control in an experiment, no matter what you do.
fsed