Answer Posted / nagendra rane

Specific Optical Rotation [α]tλ = 100 x a
---------
l x C

Where Specific Optical Rotation at temperature “t” and “λ”
is wavelength

a = Optical Rotation
l = length of Polarimeter tube
c = Concentration
The average Specific Optical Rotation of Dextrose
α = +52.76

Therefore C = 100 x a (Optical rotation)
---------------------------
2 x α

C = 100 x a (Optical rotation)
---------------------------
2 x 52.76

C = a X 0.9477
Concentration of Dextrose(C)= OR(a) x 0.9477

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