Step-by-step explanation:
To calculate the amount of sucrose needed to make a 2 L of a 2 M solution, you can use the formula:
moles = concentration (M) * volume (L)
moles of sucrose = 2 M * 2 L = 4 moles
Then, convert moles to grams using the molecular weight of sucrose (342.30 g/mol)
grams of sucrose = 4 moles * 342.30 g/mol = 1369.2 g
So, you would need 1369.2 g of sucrose to make a 2 L of a 2 M solution.