Answer:
To add 40g of sucrose into 60g of water.
Step-by-step explanation:
°Brix represents amount of sucrose in an aqueous solution. 1 Degree brix represents 1g of sucrose in 100g of solution.
As you want to prepare 100mL of solution of a 40°brix and assuming a density of the solution of 1g/mL you need 100g of solution (100g = Mass solute + Mass solvent) and 40g of sucrose. That means mass of water must be:
100g = Mass solute (Sucrose) + Mass solvent (Mass water).
100g = 40g + Mass Water
60g = Mass of water.
Thus, to prepare a 40°brix solution you need:
To add 40g of sucrose into 60g of water.