a mixture of 100 grams of water is mixed with 100 grams of sodium nitrate at 30 degrees celcius if filtered how much salt would be left behind

Look at the solubility curve for sodium nitrate. That tells you how much will be dissolved. http://staff.prairiesouth.ca/~chemistry/chem30/graphics/4_graphics/sol_curve.jpg

I don't get the table tough i don't understand.

it is shown on the graph; just look for NaNO3 at temperature 30, the gram of solute (NaNO3) is roughly 96g.

To determine how much salt would be left behind after filtering, we need to know the solubility of sodium nitrate in water at the given temperature. The solubility of a substance refers to the maximum amount of that substance that can dissolve in a given amount of solvent, usually expressed as grams of solute per 100 grams of solvent.

In this case, let's assume the solubility of sodium nitrate at 30 degrees Celsius is 200 grams per 100 grams of water. This means that 200 grams of sodium nitrate can dissolve in 100 grams of water at this temperature. Since we have 100 grams of water, it can dissolve up to 200 grams of sodium nitrate.

However, we only have 100 grams of sodium nitrate, which is the same amount as the solubility. This indicates that all of the sodium nitrate will dissolve in the water since its amount is less than the solubility. Therefore, after filtering, there would be no sodium nitrate left behind as it fully dissolved in the water.

Note: Solubility values can vary depending on impurities present in the solvent and experimental conditions. It's always best to consult reliable references or conduct experiments to obtain accurate solubility values.