Question

7. A 0.5 gram sample of hoodia gordonii isolated from natural sources yields an observed rotation of -0.76° when dissolved in 20 mL of chloroform and placed in a 1-dm cell. Determine the specific rotation [α] of hoodia gordonii for:

(a) the entities as defined above,

(b) an increase in solute from 0.5g to 1.0 g;

(c) an increase in solvent from 20 mL to 40 mL; and (d) an increase in path length from 1 dm to 2 dm.

Does entities defined above refer to the picture since its a hoodia gordnii? I don't even know where to start with this one

Step 1

(a)

Determine the specific rotation [α] of hoodia gordonii for the given entities:

Step 2

(b)

Determine the specific rotation [α] of hoodia gordonii for an increase in solute from 0.5g to 1.0 g:

Step 3

(c)

Determine the specific rotation [α] of hoodia gordon...

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