Question

A solution of L-alanine(4.0g/50 ml of 6 N HCL) has a rotaition of +1.61 degree in a 2dm polarimeter tube. calculate the specific rotation of L-alanine in 6 N HCl
a) +15.1 degree
b)+10.1 degree
c)+11.1 degree
d)+16.1 degree​

Answer 1

Answer: Answer: b +10.1 degree

Explanation: [α] = Α°/ l×C; +1.61/2×0.08

[α]= +10.1°.

Answer 2

Answer:

Concept:

The non-essential amino acid L-alanine is sometimes known as alpha-alanine or just alanine. There are numerous uses for alanine. It restores muscles, provides energy, and even aids the body in controlling blood sugar levels. Because alanine is a non-essential amino acid, the body can produce it on its own and does not require dietary intake. Generally speaking, 2 to 5 grammes of beta-alanine per day are advised. It might work much better if you take it along with food.

Given:

In a 2dm polarimeter tube, a L-alanine solution (4.0g/50 ml of 6 N HCL) rotates by 1.61 degrees. determine L-specific alanine's rotation in 6 N HCl.

a) +15.1 degree

b) +10.1 degree

c) +11.1 degree

d) +16.1 degree​

Find:

find the correct option for the given question

Answer:

The answer is option (b) +10.1 degree

A chemical compound's specific rotation is one of its properties in chemistry. It is described as the shift in monochromatic plane-polarized light's orientation, expressed as the product of distance and concentration, as the light passes through a sample of a substance dissolved in solution. Dextrorotary compounds rotate the plane of polarisation of a beam of plane polarised light in a clockwise direction and correspond to positive specific rotation values, whereas levorotary compounds rotate the plane of polarisation of a beam in a counterclockwise direction and correspond to negative specific rotation values. A substance is said to as "optically active" if it has the capacity to rotate the plane of polarisation of plane-polarized light.

According to the CRC Handbook of Chemistry and Physics, specific rotation is defined as follows: For an optically active material, defined by [α]θλ = α/γl, where is the angle through which a solution of mass concentration and route length l rotates planar polarised light. The temperature in Celsius and the light wavelength used for the measurement are shown here.

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