5.(2 points) In this experiment we have hydrated ions traversing the stationary

Question

5.(2 points) In this experiment we have hydrated ions traversing the stationary phase. Hermione is curious why certain ions travel at different rates though the stationary phase. Fill in the blank: The more highly charged the complex (hydrated ion), the the affinity for the more polar stationary phase and the the ions move A) greater, slower B) smaller, slower C) greater, faster D) smaller, faster 6. (2 Points) Hermione now understands how the affinity of the complex and the stationary phase affects the velocity of the complex. She is curious though, what in the stationary phase is controlling this. Fill in the blank: The paper in the paper chromatography lab is made of cellulose which has a surface covered in groups A) -OH B) -CH3 C) -NH D) -NH2

Explanation / Answer

5.Greater and slower (The answer is A): The higher the charage of the complex, the greater the affinity of the complex with the stationary phase and hence the mobility of complex is slower.

6.-OH groups (The answer is A): Cellulose is made of glucose monomers and hence are made of -OH groups.

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