8g
Oversaturated, only around 35g of sodium chloride will dissolve at that 20C.
According to the CRC Handbook of Chemistry and Physics, 58th Edition, 35.7 grams of sodium chloride (NaCl) can be dissolved in 100.0 grams of pure water at 0 degrees centigrade (page B-159). At 199 degrees centigrade the amount able to be dissolved increases to 39.12 grams of NaCl.
Learn spelling first, then come back... KCl Degrees Celcius
Sodium Bromide is of course very soluble in water. In fact 116 grams of NaBr will dissolve in 100 cc of H2O at 50 degrees C.
When the water froze into ice it was expanding (thermal expanision) causing the 100 grams of ice to have a greater volume than 100 grams of water!
20
20
260
Radium sulfate (formula RaSO4) will dissolve at 0.00021 g/100g of water. To determine this: Get the solubility product constant Ksp of the values. This will indicate how much solid gets dissolve in the solution. Also consider the effect on solubility (for example, common ions).
100 g water dissolve 45,8 g potassium chloride at 50 o 0C.
67.0 grams of caffeine will dissolve in 100 mL of water at 100 degrees Celsius. 100mL of water = 100g of water so.. 67.0 grams of water will dissolve in 100 grams of water at 100 degrees Celsius. I pretty sure this is right, I was searching for the answer myself and it seems to work. But more accurately you will need to find the density of water at 100 ºC which is 0.9584 g/mL. So, 100g/0.9584 g/mL equals about 104 mL. Then 104 mL x 67.0g/100 mL = 69.9 g.
The solubility of copper sulfate pentahydrate at 100 0C is 114 g/100 g water.
Every 100 grams (100 millilitres) of boiling water (even hard water) will dissolve a maximum of about 40 grams of salt, so anything in excess of that amount just will not dissolve. If your poured a teaspoon of salt grains into a pan of boiling water it would dissolve immediately - almost no time at all.
This is a proportion problem. Call the unknown mass in grams of compound m. Then 4.50/18.3 = m/100; m =450/18.3 = 24.6 g, to the justified number of significant digits.
The answer is 0,065 g.
Dissolve common salt in water. Aprroximately 6 grams in 100 mL of water,
the solubility of potassium nitrate in 70 degreesCelsius water is about 134 g KNO3 per 100 g water