How many molecules are there in 50.00 moles of glucose

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

True, the standard unit for volume is liters which can be represented by either a lower case "l" or a capital "l"