Does air have mass? I think it does because air takes up space so it is matter and matter has mass.
right you are. To weigh it is a bit tricky. One way is to compress it.
Air does indeed have mass. It is composed of various gases, such as nitrogen, oxygen, carbon dioxide, and others, which have molecules that have mass. Since air takes up space and is considered matter, it also has mass.
To measure the mass of air, one way is to compress it. When air is compressed, it becomes denser, and its mass per unit volume increases. By using special devices such as compressors or air pumps, you can compress a known amount of air into a container. This container can then be weighed using a scale to measure the mass of the compressed air. This method allows for the determination of the mass of a specific volume of air.
It's important to note that the mass of air is typically measured indirectly through the determination of its volume or the change in pressure it causes. Precise measurement of air mass can be challenging due to its low density. Therefore, scientists often focus on measuring either the volume or the pressure of air, which can then be used to calculate its mass using known physical laws such as the ideal gas law.