ewhat is the solubility of X in mol/dm3 if 25cm3 of its saturated solution contains 4.0g of X
You asked this question yesterday and I answered. Something must be missing. You give the solubility in the problem in g/25cc. With no molar mass there is no way to calculate mols.
No
To find the solubility of X in mol/dm3, we need to first convert the given quantities into the correct units.
1. Convert the volume of the solution from cm3 to dm3:
- 25 cm3 = 25/1000 dm3 = 0.025 dm3
2. Calculate the molarity (mol/dm3) using the given mass of the solute:
- Molarity (mol/dm3) = Amount of solute (mol) / Volume of solution (dm3)
To find the amount of solute (in moles), we need to convert the given mass of X (4.0g) to moles using its molar mass:
- Determine the molar mass of X using the periodic table or other reference source.
- Let's assume the molar mass of X is 100 g/mol.
Now we can calculate the amount of solute in moles:
- Moles of X = Mass of X / Molar Mass of X
= 4.0 g / 100 g/mol
= 0.04 mol
Finally, we can calculate the solubility:
- Solubility (mol/dm3) = 0.04 mol / 0.025 dm3
= 1.6 mol/dm3
Therefore, the solubility of X is 1.6 mol/dm3.