An aqueous solution containing 4.95 g of an optically pure compound was diluted to 700.0 mL with water and placed in a polarimeter tube 15.0 cm long. The measured rotation was –3.65° at 25 °C. Calculate the specific rotation of the compound.

[∝] = 344.1°

Explanation:

The formula of specific rotation is:

[∝] = ∝ / c×l

Where [∝] is specific rotation, ∝ is measured rotation, c is concentration is g/mL and l is path length in decameters

Concentration is:

4.95g/700.0mL = 7.071x10⁻³ g/mL

Path length is:

15.0cm ₓ (1dm / 10cm = 1.50dm

Replacing:

[∝] = -3.65° / 7.071x10⁻³ g/mL×1.50dm

[∝] = 344.1°

I hope it helps!

false

because it does not have the potential to be entirely used up

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i