All categories

1 year ago

When sweetening her iced tea, Emma stirs sugar into the glass. She tastes it and decides she

Biology

1 answer:

weeeeeb [17]1 year ago

7 0

Generally, the quantity of a solute that can be dissolved in a solvent increases with temperature

The reason why Emma cannot get all the sugar to dissolve in the ice tea is as follows;

The liquid in the iced tea, which is the solvent has reached its solubility limit, it is saturated and therefore can not dissolve any more sugar at the given temperature

Solubility limit and saturation point clarification:

The saturation point or solubility limit is the point at which the sugar in the

solution has the same chemical potential as is present in pure sugar

In order to dissolve more sugar, the temperature of the solution needs to

be raised to increase the kinetic energy of the solvent and sugar molecules

such that the bonds holding the sugar molecules can disintegrate and

more sugar is then dissolved making the iced tea sweeter

Learn more about solid solubility here;

brainly.com/question/17173430

You might be interested in

Which best describes a difference between transcription and DNA replication?

Sedaia [141]

The right answer is A.Transcription uses uracil.

The genes carried by the DNA will be encoded in another form: messenger RNA, during a process called "transcription".

The DNA and RNA molecules are chemically very close, but the second has an extra oxygen (in red on the right of the letters) on the sugars (riboses) that make up its nucleotides (the DNA actually contains deoxyribose). In addition, the thymine (T) of DNA is replaced by uracil (U) in RNA.

8 0

2 years ago

Read 2 more answers

Read It! Amateur astronomer and photographer Nick Risinger decided to try to capture an image of the entire sky. To do this, he

Dmitry [639]

He was C Determined This is because he kept on trying Hope this helps

5 0

2 years ago

Which level of organization falls directly after the tissue level when listed in order from least to most complex? organelle cel

sweet-ann [11.9K]

This would be the organ. The order of all would be organelle, cell, tissue, organ, organ system, organism.

6 0

2 years ago

Read 2 more answers

Which of the following is not true concerning the Nereus?

natita [175]

There are no choices, I'll assume that the Nereus in the question refers to the underwater vehicle.

Facts about the Nereus
1) It is an HROV or hybrid unmanned autonomous underwater vehicle. Operated underwater but its operator is in a remote location.
2) Built and operated by WHOI or Woods Hole Oceanographic Institution
3) Designed to explore the deepest surveyed point of the ocean worldwide named Challenger Deep.
4) Deepest dive was at 35,768 feet of the Mariana Trench last May 2009.
5) Was lost on May 10, 2014 after it imploded due to pressure in the Kermadec Trench

4 0

2 years ago

Neville has low blood pressure and his pituitary started producing a homorone to maintain water balance his blood pressure event

ivanzaharov [21]

Answer: The options are missing in the question,the options are;

A) Positive feedback will stop the release of this hormone.

B) Positive feedback will speed up the release of this hormone.

C) Negative feedback will speed up the release of this hormone.

D) Negative feedback will stop the release of this hormone.

The correct answer to the question is option D

NEGATIVE FEEDBACK WILL STOP THE RELEASE OF THIS HORMONE.

Explanation: The hormone the will be produced is known as Antidiuretic hormone (ADH).it is otherwise known as VASOPRESSIN.It is secreted by the posterior lobe of the pituitary gland.

The main effect of Antidiuretic hormone is to reduce urine output,(diuresis is the production of large amount of urine). Antidiuretic hormone acts in the distal convulated tubules and the collecting ducts of the nephrons of the kidneys,it increases their permeability to water and more of the glomerular filtrate is reabsorbed. Antidiuretic hormone secretion is determined by the osmotic pressure of the blood circulating to the osmoreceptors in the hypothalamus.

As osmotic pressure rises,for example as a result of dehydration, secretion of Antidiuretic hormone increases. With this,there is Increased reabsorption of water reducing the amount of urine produced.This implies that more water is retained in the body making the rise in the osmotic pressure of the blood to be low,for example,after a large fluid intake, secretion of Antidiuretic hormone is reduced,less water is reabsorbed and more urine is produced.

At high concentrations,for example after severe blood loss, antidiuretic hormone causes smooth muscle contraction, especially vasoconstriction in small arteries.this has a pressor effect,raising systemic blood pressure.

5 0

2 years ago