Crystallization Question needed ASAP please!

Question

You dissolve an amount of solid Q in 195.0 mL solvent, forming an unsaturated solution. The solubility of Q at 0°C is 0.87 g/100 mL. The amount of solid remaining in solution at 0°C is 13.0% of the original amount of solid dissolved. What is the original amount of solid that was dissolved (report to 1 decimal place)?

 

 

Answer 1

• You know the maximum amount of Q that can dissolve in 100 mL solvent at 0°C, so what is the maximum amount for 195.0 mL solvent?
• If that maximum amount of Q is only 13.0% of what you originally dissolved, what is that original total amount?