Answer :
Final answer:
To determine the number of molecules of sucrose in the solution, multiply the molarity by the volume, and then use Avogadro's number to convert moles to molecules.
Explanation:
To determine the number of molecules of sucrose in the given solution, we need to use the formula:
moles = Molarity * Volume
First, convert the volume from liters to milliliters: 0.380 L = 380 mL.
Then, substitute the values into the formula:
moles = 1.55 M * 380 mL = 589 mol.
Finally, use Avogadro's number (6.022 x 10^23) to convert moles to molecules:
number of molecules = 589 mol * (6.022 x 10^23 molecules/mol)
number of molecules = 3.54 x 10^26 molecules
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