If dichloromethane is swapped out and ethyl acetate is used in its place, the extracts then obtained would be highly anti-radical and would be more efficient than dichloromethane.
Since "like dissolves like," ethyl acetate is a polar molecule that works well as a solvent to extract the polar caffeine molecules from coffee beans. The ethyl acetate molecules bind to the caffeine molecules, which then move through the bean cells' cell membranes. After all, the ethanol:water (1:1) solvent combination has been demonstrated to be the best for recovering catechins and delivering extracts with the highest antiradical activity.
Dichloromethane is a volatile colourless liquid used as an organic solvent in many industries. One of its main application is that it used to extract caffeine because of its highly effective solvent nature. Because DCM is a non-polar solvent and caffeine is readily soluble in DCM, it can easily be extracted without losing its aroma.
To know more about dichloromethane, refer to the following link:
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I believe the answer is: Her perceptual set that the house was haunted
Perceptual set refers to human tendency to process the information that we see based on one particular aspect of data while ignoring the others. In the example above, the aspect of data that Jackie used to make her perception is that the house of haunted. So every new information that she receive at that place would be automatically perceived as an extension of her pre-exisitng belief.
Answer:
the serial position effect.
Explanation:
The Serial-position effect can be defined as a pattern of recall for list items, in this pattern, recall is better for items at the beginning or end of a list than for items in the middle.
It entails that one tend to remember or recall the names or items in the beginning or at the end, but have no recall of items in the middle.
The serial position effect have two types;
Recency Effect is a type of serial position effect where recall is best for items at the end of a list, then for items at the beginning, then for items in the middle of the list.
Primacy Effect is a type of serial-position effect where recall is best for the first items on the list, then for at the end of the list, then for items in the middle of the list.
Cyndi only being able to recall the first few people she met indicates that she had serial position effect at the instance.
Cuneiform was used to ____________.
A. write
B. build
C. punish
D. worship
Correct answer is A.-writting
