When we look at how different liquids, called solvents, help dissolve salts in water, it’s really interesting!

Water is a special kind of solvent. It has a positive side and a negative side, which helps it dissolve many substances, including salts.

Here are some important things to know:

1. Polarity of the Solvent:

   • Liquids like water that have a positive and negative side (polar) can dissolve many ionic compounds, like salts, very well.
   • But non-polar liquids, like oil, don’t dissolve salts as easily.

2. Temperature:

   • When you heat water, most salts dissolve better.
   • So if you use hot water, you can mix in more salt than you can in cold water.

3. Type of Salt:

   • Not all salts dissolve the same way. For example, table salt (sodium chloride) dissolves easily in water, but barium sulfate does not.

4. Pressure:

   • For gases mixed in liquids, pushing down (increasing pressure) can help them dissolve more.
   • But when it comes to solid salts in water, pressure usually doesn’t make much difference.

Knowing about these factors is really useful in chemistry! It helps you understand how to make different mixtures for experiments.