To determine how many grams of sodium chloride (NaCl) are needed to saturate 500 grams of water at 100 degrees Celsius, we first need to understand the solubility of NaCl in water at that temperature. At 100 degrees Celsius, the solubility of NaCl is approximately 39 grams per 100 milliliters of water.
Since we are dealing with 500 grams of water, we need to convert that to milliliters. Given that 1 gram of water is roughly equal to 1 milliliter, 500 grams of water equals 500 milliliters of water.
Now we can calculate the amount of NaCl needed to saturate 500 milliliters of water:
- Solubility of NaCl = 39 grams per 100 milliliters
- To find out how much is needed for 500 milliliters, we use the proportion:
Amount of NaCl = (39 grams / 100 milliliters) * 500 milliliters
Calculating this gives:
Amount of NaCl = 195 grams
Thus, to saturate 500 grams (or milliliters) of water at 100 degrees Celsius, you would need approximately 195 grams of NaCl.