Laboratory Manual Chemistry in Context
Laboratory Manual Chemistry in Context
8th Edition
ISBN: 9780073518121
Author: American Chemical Society
Publisher: McGraw-Hill Education
Question
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Chapter 11.8, Problem 11.17CT

(a)

Interpretation Introduction

Interpretation:

The three skin products which contain Vitamin E has to be identified.

Concept introduction:

According to the solubility, vitamins can be classified into two:

  • • Water soluble vitamin
  • • Fat soluble vitamin

Water soluble vitamin:

  • • Found in the aqueous environment inside the cells.
  • • They have OH,COOH or other polar groups which make them water soluble.
  • • Some water soluble vitamins are incorporated into coenzymes.

Fat-soluble vitamin:

  • • Mainly they are stored in the body’s fat deposits.
  • • Vitamins A, D, E and K are examples.
  • • Over dose of these vitamins is hazardous since they accumulate in body fats.

(b)

Interpretation Introduction

Interpretation:

The way by which Vitamin E protects the skin has to be given.

Concept introduction:

According to the solubility, vitamins can be classified into two:

  • • Water soluble vitamin
  • • Fat soluble vitamin

Water soluble vitamin:

  • • Found in the aqueous environment inside the cells.
  • • They have OH,COOH or other polar groups which make them water soluble.
  • • Some water soluble vitamins are incorporated into coenzymes.

Fat-soluble vitamin:

  • • Mainly they are stored in the body’s fat deposits.
  • • Vitamins A, D, E and K are examples.
  • • Over dose of these vitamins is hazardous since they accumulate in body fats.

(b)

Interpretation Introduction

Interpretation:

It is difficult to find evidence that vitamin E would be good for the skin and this has to be investigated.

Concept introduction:

According to the solubility, vitamins can be classified into two:

  • • Water soluble vitamin
  • • Fat soluble vitamin

Water soluble vitamin:

  • • Found in the aqueous environment inside the cells.
  • • They have OH,COOH or other polar groups which make them water soluble.
  • • Some water soluble vitamins are incorporated into coenzymes.

Fat-soluble vitamin:

  • • Mainly they are stored in the body’s fat deposits.
  • • Vitamins A, D, E and K are examples.
  • • Over dose of these vitamins is hazardous since they accumulate in body fats.

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Laboratory Manual Chemistry in Context

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