a stock solution has been diluted at 16 fold. It is now 80 micro mol. What was the original stock concentration in Milli moles?

Answers

Answer 1

The original stock concentration in Milli moles will be nearly 1280 millimole.

What is concentration?

Concentration in chemistry is calculated by dividing a constituent's abundance by the mixture's total volume.

Mass concentration, molar concentration, number concentration, and volume concentration are four different categories of mathematical description.

The quantity of a substance, like salt, that is present in a specific volume of tissue or liquid, like blood, according to science. When there is less water present, the material becomes more concentrated.

(C1) (V1) = (C2) is the formula for determining a dilution (V2)

C1 = concentration of the starting solution.

V1 = volume of the starting solution.

C2 = concentration of the final solution.

V2 = volume of the final solution.

Here,

C1 = x

V1 = 1000 micro mol

C2 = 16

V2 = 80 micro mol

So,

1000x = 16 x 80

x = 1280/1000

x = 1.280

Thus, the original stock concentration is 1280 millimole.

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Related Questions

A new national park has two caves that visitors can see. One cave is made of a different type of rock than the other one. Park rangers want to explain the difference to visitors. How could energy have played a role in the different rock types forming?

Answers

Note that where a new national park has two caves that visitors can see. One cave is made of a different type of rock than the other one. Park rangers want to explain the difference to visitors. Energy could have played a role in the different rock types forming in that "Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces of rock." (Option C)

What is rock formation?

A rock formation is a solitary, picturesque, or outstanding outcrop of surface rock. Weathering and erosion shape the existing rock, resulting in rock formations. In stratigraphic and petrologic investigations, the phrase rock formation can also refer to specific sedimentary layers or other rock units.

Energy can be involved in the production of various rock types in a variety of ways. One option is metamorphism, which occurs when rock is exposed to high temperatures and pressures, leading it to alter in composition and structure.

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Full Question:

A new national park has two caves that visitors can see. One cave is made of a different type of rock than the other one. Park rangers want to explain the difference to visitors.

How could energy have played a role in the different rock types forming?

Answer choices

Energy causes different types of rock to change in different ways. Energy changes igneous rock into liquid rock and changes sedimentary rock into small pieces of rock.

Energy caused one rock type to form, but not the other. Rock that forms because of energy is a different type of rock than rock that forms without energy.

Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces of rock.

Energy changes rock on different continents in different ways. Each continent on Earth has different rock that might form liquid rock or small rock pieces when exposed to energy.

Which term defines a well-supported, explanation of an occurrence of a natural phenomenon?
Ο Α.
OB.
O c.
O D.
hypothesis
bias
observation
theory

Answers

Answer:

A theory.

Explanation:

A theory is an explanation that has been supported by reliable and valid evidence. It is the most well-supported explanation of an occurrence of a natural phenomenon.

I think it’s try Theory maybe

Mindy notices that her cat is having trouble urinating. The veterinarian suspects Mindy's cat has a urinary tract infection. Which body system does
this disease affect?
O A.
endocrine
OB. excretory
OC. respiratory
O D. circulatory

Answers

Answer:

The answer is B.excretory

Matter Movement In
Where are molecules coming from?

Biosynthesis for growth

Answers

Biosynthesis for growth; In matter movement, molecules come from leaves and plant system.

What is Biosynthesis?

The production of complex molecules within living organisms or cells is known as biosynthesis. Chemical reactions and pathways that result in the formation of substances; typically the energy-intensive part of metabolism in which simpler substances are transformed into more complex ones.

Simple compounds are modified, converted into other compounds, or joined to form macromolecules during biosynthesis. This procedure frequently involves metabolic pathways. Matter is cycled through the ecosystem via a series of food chains, food webs, and nutrient cycles. Because all organisms are interconnected, matter is transferred from one to another. These macro molecules come from leaves and plant system.

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provides an opportunity to get
to know someone of the opposite sex outside your own family.

Answers

College life or getting to meet people provides an opportunity to get to know someone of the opposite sex outside your own family.

Understand differences and similarities of both genders, and learn how to get along with each other.

Establish good interpersonal relationships, enrich your social life.

Understand each otherAccept each otherLook for similaritiesLearn from each otherComplement each otherChoose friends carefullyBe sincere

How to Get to Know the Person

1 Ask open-ended questions

2 Ask them questions about the future

3 Learn about the interests

4 Be curious about the life

5 Actively listen to them

6 Open up about past.

7 Invite them to hang out with closest friends

8 Spend a typical day together

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What would the genotype be for an orange kitty

Answers

Answer:

DNA

Explanation:

In addition to movement, arthropod appendages can be used
for
a feeding
b defense
c sensory reception
d all of the above

Answers

In addition to movement, arthropod appendages can be used for 'all of the above'.

What do you mean by arthropod appendages?

Arthropod appendages refer to the jointed legs, antennae, mouthparts, and other body parts of arthropods, such as insects, crustaceans, arachnids, and centipedes. These appendages are adapted for a variety of functions, such as locomotion, sensing the environment, and manipulating food and objects.

Arthropod appendages can be used for a variety of functions, including movement, feeding, defense, and sensory reception. They are equipped with various organs, such as antennae and mouthparts, that allow them to perform a variety of tasks.

Hence, option D is correct.

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The sample of DNA below is being analyzed to determine if a patient has
the genetic disorder. DNA sequence:3' CAA-TCG-CGG-TCT-CTT 5'.
Determine the mRNA sequence from the patient's DNA sequence.

Answers

If the sample of DNA below is being analyzed to determine if a patient has the genetic disorder and this DNA sequence is 3' CAA TCG CGG TCT CTT 5', then the mRNA sequence from the patient's DNA sequence is GUU AGC GCC AGA GAA.

What is the cell process of genetic transcription?

The cell process of genetic transcription refers to the generation of a complementary strand of RNA from a DNA template chain, which may be a fragment of a sequence and the resulting mRNA can then be used to produce a protein by another cell process called translation.

Therefore, with this data, we can see that the cell process of genetic transcription is based on the generation of a complementary RNA strand by using a DNA sequence template such as for example the coding region of a gene.

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Pls help me it’s due today at 11:59

Answers

The component of a vaccine that makes it effective is the antigen.

What is a Vaccine?

A vaccine is basically a biological preparation that provides active acquired immunity to a particular disease. It contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins. Vaccines are designed to stimulate the body's own immune system to protect the person against subsequent infection or disease.

11) An antigen is a substance that causes the body to produce antibodies when it enters the body. These antibodies help the body recognize and fight the antigen if it enters the body again.

12) A vaccination is a way of introducing a weakened or killed version of a particular virus, bacteria, or toxin into the body. This weak or dead version of the virus, bacteria, or toxin stimulates the body's natural defense system to produce antibodies that are specific to that virus, bacteria, or toxin. These antibodies can then recognize and fight off the real virus, bacteria, or toxin if the body is ever exposed to it, thus preventing the individual from getting the disease. This is known as active immunity. The immunity created by the vaccination is typically long-lasting, and in many cases, lifelong.

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please help answer the 3 questions

Answers

1. The flattened form of objects like leaves. inside the respiratory system, the alveoli. the gastrointestinal system's villi. 2. While turtles have specialized excretory openings, fish have gills.

What modification is necessary for a successful gas exchange, one example?

Alveoli modifications:

Moisture-filled walls: Gases dissolve in the moisture, which makes it easier for them to cross the gas exchange surface. Gases can travel through permeable walls. large blood supply, ensuring that blood rich in carbon dioxide is transported to the lungs and blood rich in oxygen is removed from the lungs.

Compare the Australian Fitzroy River turtle's gas exchange system to that of fish.

Gills are found in fish, while specialized excretory openings are seen in turtles. These gaseous exchange systems have a huge surface area, a plentiful blood supply, and are ventilated by water movement for a sharp gradient in concentration. The main distinction is where the gas exchange surface is located.

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A scientist makes a claim that a chemical in household cleaners causes cancer. Which question should other scientists ask about the claim if they are using scientific argumentation?
A. Is there too much of the chemical present in the cleaner
B. Should the cleaner be taken off the market
C. Are there safer chemicals that could be used in the cleaner?
D.are there other possible causes of cancer?

Answers

D. are there other possible causes of cancer?

Scientific argumentation involves testing hypotheses through rigorous experimentation and examination of evidence. In this case, before drawing any conclusions about the relationship between the chemical in the household cleaner and cancer, other scientists would want to examine whether there are other possible causes of cancer that should be considered. The scientist who made the claim would need to show through experiments and studies that the chemical in question is the cause of cancer and not some other variable that was not controlled in the study. And therefore, evaluating the evidence and testing the hypothesis is the fundamental part of scientific argumentation.

What is earth’s approximate rate of movement along its orbit?

Answers

Answer:

Earth revolves in orbit around the sun in 365 days, 6 hours, 9 minutes with reference to the stars, at a speed ranging from 29.29 to 30.29 km/s.

Explanation:

What example would you use where leaf colour is used to identify different plants?

Answers

Answer:

An example of a plant whose leaf colour is used to identify it is the Silver Maple (Acer saccharinum). It is easily recognizable by its silvery-green leaves that have a whitish underside.

Explanation:

Ms. King's class is planning an experiment to find out the average number of sunny days per week this October for their city.

Answers

Use a graph if that is the answer you are looking for. Or use the data they find and put that on the graph or how many cloudy days vs sunny days or rainy days

3. Based on the data, which beak type was more adapted and which was the least adapted?

4. What would happen if all of the birds flew to a new location and the only food available was beans? Which bird would be most successful? Which bird would be least successful?

5. If you come back to this location (question 4) in 50 years, what would you expect to see? (What type of bird will be the most abundant?)

6. Suppose a drought caused the local extinction of beans, pennies, and paperclips. Using your knowledge of the different beak shapes in your community, and understanding of the steps of natural selection, explain how the change in the environment would affect the populations of bird species.

7. List and briefly explain two other characteristics (other than beak shape) that could help a bird survive if this were a "natural" environment.

1.

2.

8. Using at least three complete sentences, explain how this lab simulation provides support for evolution and the Theory of Natural Selection.​

Answers

The bigger beaks types of bird species were more adapted able to eat the larger and harder seeds so more of them survived.

What are types of beak among birds?

Meat-eater, Fruit-and nut-eater, Seed-eater, and Nectar-feeder beaks are seen among birds differentiated based on the nutrition and food consumed.

What three adaptations do birds have?

Beaks (bills), feet, and plumage, in particular, are three physical traits that show distinct environmental adaptations (feathers). The mechanism of evolution that produces living organisms that are adaptable to their circumstances is natural selection.

What technique backs up the hypothesis of evolution?

Evolution is supported by fossil data. Numerous fossils' geographic details show that two species with a shared origin can evolve differently in various environments. An organism can be thought of as an early form from which later forms descended.

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what sensors in the past points out the similarity between parthenogenesis and sexual reproduction

Answers

The similarity between parthenogenesis and sexual reproduction is “Parthenogenesis involves the formation of a zygote”

How is parthenogenesis similar to sexual reproduction?

This method is alike to the fusion of an egg and sperm in sexual reproduction since it shapes a diploid nucleus from the fusion of two dissimilar cells. The resulting offspring is a homozygote and gets about half of its mother's genetic disparity. This type of parthenogenesis could make either a female or a male.

Komodo dragons are a sample of a species that can produce offspring both through sexual reproduction and parthenogenesis.

So we can conclude that Parthenogenesis in humans never make viable embryos,

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1. What other process can you think of that is similar to the journey of a signal through the neuron? For
example, a relay race can be similar to a neuron passing the baton to another neuron. Think of another
example and explain how.

Answers

Neurons are similar to other cells in body because: Neurons are surrounded by cell membrane. Neurons have nucleus that contains genes. It contain cytoplasm, mitochondria and other organelles.

what are neural signals?

Information from one neuron flows to another neuron across small gap called a synapse (SIN-aps). At synapse, electrical signals are translated into chemical signals in order to cross the gap. Once on other side, the signal becomes electrical again.

The transfer of information from neuron to neuron takes place through release of chemical substances into the space between axon and the dendrites. These chemicals are called neurotransmitters, and process is called neurotransmission. The space between the axon and dendrites is called the synapse

Neurotransmitter release from presynaptic terminal consists of a series of intricate steps:

1) depolarization of the terminal membrane

2) activation of voltage-gated Ca2+ channels

3) Ca2+ entry

4) a change in conformation of docking proteins

5) fusion of the vesicle to the plasma membrane

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If a purchaser enters a futures contract with an agreement to buy a crop for $200 per ton next month, which of the following demonstrates the result of the price rising to $225 at that time?

Responses


The purchaser would still pay only the $200 for the commodity

The purchaser would have the option of cancelling the deal or paying the extra $25 per ton.

The purchaser would be let out of the deal and a new deal would be created.

The purchaser would be required to pay the extra $25 per ton.

Answers

Answer:

A futures contract is a legal agreement to buy or sell a particular commodity asset, or security at a predetermined price at a specified time in the future.

With this the answer would be the first option “The purchaser would still pay only the $200 for the commodity” sense it was a predetermined price.

Explanation:

Part
A
Fill in the table using credible sources and your own experiences and past observations. If you're not sure what one of the
characteristics means, look it up on a credible website

Answers

A source is trustworthy if it was written by a subject matter expert, is error-free, and is objective.

How do I know if a source is credible?

Peer-reviewed publications, governmental entities, think tanks for scientific study, and trade associations are examples of reliable sources. Due to their strict publishing standards, major newspapers and magazines also offer trustworthy information.

A reliable source is one that was authored without bias or inaccuracies by a subject matter expert in the field. This manual outlines the distinctions among reliable, scholarly, and peer-reviewed sources.

Take note of the three letters that follow the domain name, such as "edu," "gov," "org," and "com," which indicate the site is an educational, governmental, or nonprofit entity (commercial). Websites with the. gov and. edu extensions are typically trustworthy, but watch out for sites that are trying to trick you.

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answer is given from edmentum

The occipital lobe processes visual information. The temporal lobe helps process hearing and memory. And the parietal lobe helps the brain process different stimuli, like pressure, temperature, and pain. What can you conclude about our brains based on this information?

A) One major function of the brain is making sense of different stimuli coming in from the outside world.
B) The most important thing that the brain does is organize our memories by time so that we can quickly recall them.
C) Brain activity is only concerned with things happening inside the human body, not outside in the larger world.
D) The first step in processing sound occurs in the occipital lobe, where the sound is processed and organized.

Answers

For instance, while the occipital lobe is crucial to visual processing, both sides also need portions of the parietal, temporal, and frontal lobes to handle complicated visual inputs. Thus, option D is correct.

What combine role of occipital lobe and temporal lobe?

Below the lingual gyrus, the fusiform gyrus projects from the temporal lobe. The occipital lobe is the area of the brain responsible for processing vision. It is linked to memory formation, object and face identification, colour perception, distance and depth perception, and visuospatial processing.

Although each lobe is said to have a particular purpose, most tasks call for the cooperation of several regions across both hemispheres.

Therefore, The first step in processing sound occurs in the occipital lobe, where the sound is processed and organized.

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HELP LIMITED TIME!!!!!!!!!
Solar, wind, wave, and nuclear energy are all ways of producing
energy without producing the negative outcome of:

Select one:

1, Decreased oxygen levels
2, Habitat loss
3, Increased greenhouse gas emissions
4, Non-native species

Answers

Answer:

3. Increased greenhouse gas emissions

Explanation:

Solar, wind, wave, and nuclear energy are all ways of producing energy without producing the negative outcome of increased greenhouse gas emissions. Greenhouse gases, such as carbon dioxide and methane, are released into the atmosphere through the burning of fossil fuels, such as coal, oil, and natural gas. These gases trap heat in the atmosphere and contribute to global warming and climate change. Solar, wind, wave, and nuclear energy, on the other hand, are forms of renewable energy that do not produce greenhouse gases when they are generated. They are considered more environmentally friendly alternatives to fossil fuels, and their use can help to reduce greenhouse gas emissions and mitigate the impacts of climate change.

What are two adaptations in plant cells that do similar things for plants as bones do for animals? HELP PLEAS THANK OYOU

Answers

Answer:

Two adaptations in plant cells that do similar things for plants as bones do for animals are cell walls and vacuoles. Cell walls provide structure and support to the plant, similar to how bones provide structure and support to animals. Vacuoles store essential nutrients and minerals, just as bones store important minerals and nutrients.

Explanation:

Explain the application of biology especially the role of microbiology and biotechnology for the growing public and global health needs
A, in the development effective diagnostics ,prevention ,and treatment measures including production of novel drugs and recombinant vaccine
B,in the production of nutritionally enriched genetically modified crops and anmimals to alloviate food insecurity which is a common dilemma particularly in underdeveloped countries

Answers

The role of microbiology and biotechnology is very crucial for the growing public and global health needs because it has a great contribution to humans.

What is the application of biology to biotechnology?

Biotechnology is defined as the use of biology to solve problems and make useful products with the help of microbes. The most prominent approach is genetic engineering which enables scientists to alter and modify an organism's DNA. Microbiology has proved to be one of the most significant fields in biology, making it possible to define microorganisms that cause diseases, discover treatments for different diseases, and use microbes for industrial applications, etc.

Each human body hosts about ten microorganisms for every human cell, and these microbes help in digestion, produce vitamin K, enhance the development of the immune system, and remove harmful chemicals. Microbes are essential to making many foods such as bread, cheese, wine etc.

So we can conclude that the application of biology especially the role of microbiology and biotechnology leads to the welfare of humans.

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6. Which process is most responsible for the
formation of sand dunes?

A water erosion

В volcanism

C wind erosion

D glaciation

Answers

Answer:

C wind erosion is most responsible for the formation of sand dunes.

Explanation:

Sand dunes are formed when wind blows loose sand from a beach, desert, or other location, and deposits it in a new location. The sand is then shaped by the wind into dunes, which can vary in size and shape depending on the strength and direction of the wind. Water erosion, volcanism, and glaciation can all also contribute to the formation of sand dunes to some extent, but wind erosion is typically the primary process responsible for their formation.

mkaqvzcdwp how many types of plants are there

Answers

Answer:

There are more than 60 types of plants

Explanation:

Hope it helps you

PLS RATE AS BRAINLIEST ANSWER

Which term best describes the structure of a dragonfly with no bones and a bat with
bones?
O a. Homologous structures
Ob. Analogous structures
O c. Fossil records
O d. Vestigial structures

Answers

The corre answer is A

60 POINTS!!!!!
What would happen if a new predator were introduced to prey with which it has not coevolved?

Answers

Answer:

If a new predator were introduced to prey with which it has not coevolved, it could have a devastating effect on the prey species. The prey species may not have adapted behaviors or physical characteristics to protect themselves from the new predator, making them easy targets for predation. This could lead to a decrease in the prey population and an increase in the predator population, ultimately resulting in the destruction of the prey species. Additionally, the introduction of a new predator could disrupt the balance of the existing food web, which could have a ripple effect on other species in the ecosystem.

Explanation:

Answer: leading cause of extinction is the introduction of predators into an isolated system like an island or a lake

what are the main biome elephants are found, an ecosystem and four other types of biomes.

Answers

Answer:

Elephants are mainly found in savanna biomes, grassland ecosystems, tropical rainforest biomes, desert biomes, tundra biomes, and temperate deciduous forest biomes.

Explanation:

Folate is a crucial vitamin for proper development of
the neural tube, which eventually becomes the brain and
spinal cord. Which of the following might explain why
neural tube defects occur more frequently than other
types of birth defects?

Answers

The neural tube, which is responsible for the development of the brain and spine, closes within the first 28 days of pregnancy.

Folate deficiency can prevent the neural tube from closing, which can result in a neural tube defect.

Which vitamin deficiency results in defects of the neural tube?

Neural tube defects may be more likely in people with low vitamin B12 levels, according to the National Institutes of Health (NIH).

How does folate affect the developing uterus?

The amount of folate in your blood is important to help prevent a neural tube defect, also known as a serious birth defect of the brain or spine, in a developing baby if you are pregnant or could become pregnant.

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What does working out have to do with the characteristics of life? 100 POINTS!!!!!!!!!

Answers

Increasing life expextancy by several years.

Hope this helps!!

Answer:

Working out regularly can improve your muscle strength and boost your endurance. Moving our body delivers oxygen and nutrients to your tissues and helps your cardiovascular system work more efficiently. And when your heart and lung health improve, you have more energy to tackle daily chores.

By having more energy to do daily activities your life expectancy and quality can increase significantly.

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