Answer :
Final answer:
To determine the number of molecules of sucrose in a solution, multiply the concentration, volume, and Avogadro's number.
Explanation:
To determine the number of molecules of sucrose in the solution, we can use the formula:
Molecules = concentration (M) x volume (L) x Avogadro's number
Given that the concentration is 1.55 M and the volume is 0.380 L, we can plug in these values:
Molecules = 1.55 M x 0.380 L x 6.022 x 1023 molecules/mol
Simplifying the equation, we get:
Molecules = 3.5131 x 1023 molecules
Therefore, there are approximately 3.5131 x 1023 molecules of sucrose in 0.380 L of a 1.55 M solution of sucrose.
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