As we know that 1 mole of any substance contains 6.022 × 10²³ particle.
So,
1 mole of Glucose contain = 6.022 × 10²³ molecules
Then
50 moles of Glucose will contain = X molecules
Solving for X,
X = (50 mol × 6.022 × 10²³ molecules) ÷ 1 mole
X = 3.011 × 10²⁵ Molecules of Glucose