1) What is the difference between spectroscopy and spectrometry?

2) Why is it necessary to use a narrow wavelength spectrum of light in spectrometry? Why do we use wavelengths of peak absorbance for a particular analyte?

3) What volume of a 100 ppm (part per million) stock solution would be used to create 30 mL of a 10 ppm standard?

Answers

Answer 1

Spectroscopy refers to the interaction of matter with energy.

What is spectroscopy?

The term spectroscopy refers to the interaction of matter with energy. It shows the manner in which matter is able to interact with energy. Spectrometry is the application of spectroscopy.

It is important to use a narrow wavelength during spectroscopy because different wavelengths can be used to identify the various kinds of compounds in the sample.

The dilution formula could be used to obtain the new concertation of the solution  after dilution. An aliquot of the stock  solution is added to a measured volume of water and made up to the required mark for dilution.

Using the dilution formula;

C1V1 = C2V2

C1 = 100 ppm

V1 = ?

C2 = 10 ppm

V2 = 30 mL

V1 = C2V2/C1

= 10 ppm * 30 mL /100 ppm

V1 = 3 mL

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Related Questions

Please help asap!! It's due Monday!! THE 1ST PAGE IS THE WORDS I NEED THE SECOND PAGE TO BE FROM!!

Answers

Scientific term is the related term, which shows and reveals science, which is neither ideological nor based on common sense. It is a term used in scientific language, unknown to those who are not scholars of a particular branch.

How do you spell the scientific name?

procarionte - before, in front/nucleusosteocyte - bone/ cellmacrophage - large / eatmicroscope - small / instrument for viewingeukaryote - good,true / nucleusgenealogy - race, offspring / studyphotosynthesis - light / to put togetherautotroph - self-operating / food, feedingmetaphase - a boundary, or turning point/ appearenceglycolysis - sugar / a releasing, looseningtonsillectomy - an end,complete / cut outextracellular - out/ having to do with cells

With this information, we can conclude that Such a name is called a binomial name or a scientific name. The generic name or the initial part of the name highlights the genus to which an organism belongs.

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What is one of the purposes of hunting laws and regulations?

Answers

Answer: is the image

Explanation:

How much milk does speckle park produce

Answers

3,900 because it's the milk of it

Biodiversity is important for the sustainability of ecosystems. However, many of the human actions that are aimed at growing communities are decreasing the biodiversity of these areas, leaving populations and ecosystems vulnerable. As human populations grow, the terrestrial and aquatic ecosystems they use may be transformed by the efforts of human beings and biodiversity losses typically accompany these processes. Which of these actions decrease biodiversity and threaten sustainability? Select ALL that apply.
A Regulated hunting seasons artificially decrease hunted populations, often leading to extinctions.
B Decreased use of pesticides and fertilizers can allow for increased damage to plant life.
C Invasive (non-native) species may outcompete native species for food and habitat.
D Habitat destruction reduces or eliminates the food resources and living space for most species.
E Pollution from building and commercialization can create health problems in exposed organisms.

Answers

Habitat destruction reduces or eliminates the food resources and living space for most species. So the correct option is D.

What is biodiversity?

The diversity of animals, plants, fungi, and even microorganisms like bacteria that comprise up our natural environment are all included in what is known as biodiversity.

These many species and critters collaborate in complicated web-like ecosystems to keep things in balance and support life. All of nature that we require for survival, including food, fresh water, medicines, and shelter, is supported by biodiversity.

We run the danger of disturbing the equilibrium of ecosystems and losing biodiversity as people put more and more strain on the world by utilising and consuming more resources than ever before.

herefore the correct option is D.

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What are the characteristic of solute plssss po​

Answers

Solute is the substance that dissolves

Solute is a minor componentSolvent is a major componentSolutions is a mixture where the solute is uniformly distributed in the solvent.Solution  is homogeneous mixture that contains particles the size of a typical ion or small molecule.The mass of the solute dissolved per unit volume of solvent is called ConcentrationSolubility is The concentration of a saturated solutionSolutes lower the freezing point and raise the boiling point of a solvent.Saturated Solution is a solution in which no more solid can be dissolvedUnsaturated Solution is solution in which more solid can be dissolvedPrecipitate is a solid that crystallizes out of a saturated solution as it is cooled.

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Benchmark Breakdown
Compare and contrast the relationships
among organisms, including predation,
parasitism, competition, commensalism, and
I
mutualism.
Into a "I can" statement
Please I need help

Answers

Predation is a relation in which member of one species consumes members of another species. Parasitism is a relation in which  one organism lives inside other organism.

In competition two species are competing for the resources. Commensalism is an association when one organism derives the benefit and others gets nothing. In mutualism both organisms are benefited.

In predation one organism is benefited usually predator and other is harmed usually prey. In parasitism also one organism is benefitted usually the parasite and other is harmed called host.

In competition both are harmed. In commensalism one organism is benefited and other is neither benefited nor harmed. In mutualism both the organisms are harmed.

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We're not sure what the function of
a. exocytosis
b. osmosis
c. pinocytosis
d. phagocytosis
…is

Answers

Answer:

read explanation

Explanation:

the cells transporting substances from the interior of the cell then to the exterior of the cell

what is the tonicity of honey

Answers

Answer:

Is honey hypertonic?

Image result for what is tonicity of honey

Honey is 70 to 80% sugar and this high percentage causes hypertonic conditions that may lead to lysis of microbial cell walls.

Explanation:

hope this helps

Honey is hypertonic, meaning it absorbs water quickly. As a result, it can keep a tear dry and draw off the fluid that bacteria require to survive.

What is tonicity?

Tonicity is a solution's ability to change the volume of cells by changing their water content. When water enters a cell, it can cause hypotonicity or hypertonicity when it exits the cell.

Hypotonic fluid contains less fluid, sugars, and salt than blood. Hypertonic fluid contains more fluid, sugars, as well as salt than blood.

Isotonic fluid, sugars, and salt concentrations are the same as those found in blood.

Honey is hypertonic, which means it quickly soaks up water. As a result, it can keep a tear dry as well as draw off the fluid required by bacteria to survive.

Honey has such potent antibacterial properties that it can treat severe conditions such as MRSA, which is recognized to be resistant to conventional antibiotics.

Thus, it can be concluded that honey is hypertonic.

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the most important factor contributing to the modern day extinction of hundreds of species on the eartjh

Answers

Answer:

More than a century of habitat destruction, pollution, the spread of invasive species, overharvest from the wild, climate change, population growth and other human activities have pushed nature to the brink.

Types of amino acids and discuss

Answers

In simpler terms, Amino acids are organic compounds containing the basic amino groups (-NH2) and carboxyl groups (-COOH).

Amino Acids are the organic compounds that combine to form proteins, hence they are referred to as the building components of proteins. These biomolecules are involved in several biological and chemical functions in the human body and are the necessary ingredients for the growth and development of human beings. There are about 300 amino acids that occur in nature.”

How are pigs being genetically modified to help humans?

Answers

Pigs are being genetically modified to help humans in regard to certain key features such as meat amount and proportion of proteins in meat or meat and fats proportion.

What are genetically modified organisms (GMOs)?

Genetically modified organisms (GMOs) are those organisms (i.e, plant crops and animals) that were modified by using genetic engineering techniques in order to produce the desired characteristics such as meat in the case of pigs.

In conclusion, pigs are being genetically modified to help humans in regard to certain key features such as meat amount and proportion of proteins in meat or meat and fats proportion.

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A volcanic eruption covers a wide area of forest with ash lava and volcanic rock which of these describes the first stage of ecological succession that will begin to return biotic factors back to the forest community and return it to a state of equilibrium

Answers

The process of primary succession will take place to return the forest to a state of equilibrium.

After an earthquake or volcanic eruption, lichens break down the rocks to produce new, nutrient-rich soils. This process is known as primary succession. Pioneer species are the first species that settle a region following a significant disturbance; they contribute to shaping the new ecosystem. Primary succession happens when new land is created or rock is exposed, such as after a volcano eruption like the ones on Hawaii's Big Island. New land is continuously being generated as the lava flows into the ocean. Every year, the Big Island gains about 32 acres of new land. First, certain hardy plants and lichens with little soil requirements, known as pioneer species, can develop because weathering and other natural forces degrade the substrate sufficiently.

Therefore, option C. is correct.

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11. Obesity, high sodium intake, low potassium and calcium intake and excessive alcoho
consumption are all nutritional factors that may contribute to the development of
A. Constipation
B. Hypertension
C. Peptic ulcer disease
D. Leukemia

Answers

Hypertension

hypertension is defined as a Systolic blood pressure of more  than or equal to 160 mm Hg or a Diastolic blood pressure of more than or equal to 100 mm Hg.hypertension  causes an inflammatory response, which causes a cascade of responsesled to atherosclerosisCardiovascular, brain, kidney, eyes are affected by hypertensionprehypertension is a SBP of 120 to 139 mmHg or DBP of 80 to 89 mmHg.primary hypertension is Elevated BP without an identified cause accounts for 90 to 95% of all hypertension casessecondary hypertension is Elevated BP with a specific cause that can often be identified and corrected should be suspected in people that suddenly develop hypertension, examples, brain tumor, thyroid disease

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Human transportation enabled a species of beetle to move from Asia to
North America. This beetle feeds on a particular species of flowering
trees. In its native habitat, predators control its population. However, the
beetle has fewer predators in North America.
What kind of organism is this beetle, in the new ecosystem? What would
its effect be on flowering trees?

Answers

The first instances of an exotic long-horned beetle destroying ornamental trees were in Chicago and New York City. Since then, beginning in 1996, reports of this pest have been made throughout the majority of the northeastern states as well as in California. Native to Asia, the Asian Long-Horned Beetle (ALB) decimates a wide variety of tree species, including poplars, maples, elms, and mulberries. Large and noticeable, these beetles can be easily identified by their horns or antennae. This insect harms the ecosystem around people by destroying priceless park and shade trees as well as damaging or even destroying forest trees with high economic worth (e.g., sugar maples in the northeast USA). Physical hazard from falling branches or trees during wind and/or ice storms is also posed to people and vehicles by the structural weakness of trees caused by tunneling larvae.

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What is done with the oxygen left
as a product of photosynthesis?
A. used to build tissues
B. used as a waste product
C. used to remove carbon dioxide from plants
D. used as a light source

Answers

Answer:

B. used as a waste product

Explanation:

since oxygen is whats left after photosynthesis happens and is whats left

Answer:

c

Explanation:

Used to remove carbon dioxide from plants. That is how plants keep our air breathable. Correct me if I'm wrong.

2 tablets 3 times a day for 10 days

Answers

2 tablets 3 times a day for 10 days means, 120 tablets are needed in 10 days.

What is tablet?

A tablet is a solid unit dose form or oral medicinal dosage form. The solid unit dosage form of a medication or medications combined with the appropriate excipients is known as a tablet. It consists of a combination of active ingredients and excipients that are often in powder form and are compressed or pressed into a solid dosage.

A medication that is prescribed three times daily has enough flexibility in its dosing schedule to be taken at the patient's leisure in the morning, at lunch, or at night. In these circumstances, taking the medication an hour or two earlier or later won't have an impact on how well it works.

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Collect information regarding the hazardous diseases caused by
microorganisms. Prepare a Virtual Science Album regarding the microbes and the diseases caused by them.

Answers

Answer:

the best friend to strangers back to you soon love motorcycle pictures I love motorcycle ️ to Ask you too I don't know the answer

Describe the physical characteristics of water that make it valuable resource for industrial uses

Answers

Answer:

Water is good for fabrication, processing, washing, diluting, cooling, and transporting of other products.

Explanation:

According to the United States Geological Survey (USGS), industrial water is used for fabricating, processing, washing, diluting, cooling, or transporting a product. Water is also used by smelting facilities, petroleum refineries, and industries producing chemical products, food, and paper products.


Hope this helped! Have a wonderful day! :)

What is the "Myth of Continents"? What are "World Regions"?

Answers

The Myth of Continents provides fresh insight into how our conceptions of geography as a whole developed from cultural ideas. It explains how the first continental divisions emerged during the classical period and how the Urals came to serve as the boundary between the so-called continents of Europe and Asia.

The continents of Europe, Asia, and North America were formed when two enormous land masses split apart from one another. Australia and Antarctica eventually split apart and moved south while remained connected. The Earth's Northern and Southern hemispheres are separated by the Equator, sometimes known as the line of 0 degrees latitude. North America, the northern third of South America, Europe, the northern two-thirds of Africa, and the majority of Asia are all found in the northern hemisphere.

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Which statement is true about the function of ATP?
Responses

It's used to store energy for long periods of time.
It's used to store energy for long periods of time.

It can only be used to help transport molecules.
It can only be used to help transport molecules.

It's primarily used to fuel cell division.
It's primarily used to fuel cell division.

It provides energy for all cellular activities.

Answers

Answer:

its provides energy for all cellular activities

How would fat based cell membranes be a benefit to cells?

Answers

Lipids allow for the exchange of nutrients.

All the points and lines that lie on the same plane are said to be a coplanar
True or False

Answers

False because it’s not giving nor SLAYing

A sledgehammer has a mass of 3.5 kilograms. What net force, to the nearest whole newton, will a person need to apply to accelerate the sledgehammer at a rate of 4.0(m)/(s^(2)) ?
Record your answer in the boxes below. Be sure to use the correct place value.

Answers

The correct answer would be 14 Newtons of force required

Force is equal to mass multiplies with the acceleration.

So, the correct answer is 14 N.

What is Force?

Force is the push or pull of an object which cause changes in velocity or to accelerate with mass. It is a vector quantity which means it has direction as well as magnitude.

A force is usually denoted by the symbol F. Below equation is derived from the second Law of Newton.

F = m·a

where F = force, m = mass, and a = acceleration.

For above example,

Mass= 3.5 kg

Acceleration (a)= 4[tex]m/s^{2}[/tex]

so, F=3.5*4= 14N

The SI unit of force is the Newton (N). Other units of force include dyne, kilogram-force (kilopond), poundal and pound-force.

Thus, Force is equal to mass multiplies with the acceleration.

So, the correct answer is 14 N.

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Question 4 of 10
Which phase of the cell cycle begins after G₁ phase is complete?
A. Cytokinesis
OB. G2 phase
OC. M phase
OD. S phase

Answers

The S Phase takes place after when G1 phase is completed.

The cell cycle generally composed of four phase that are G1, S, G2 and M (Mitotic phase) G1, S, G2 phases are the part of interphase.

A cell divides Into two daughter cells as a result of a sequence of events known as the cell cycle, or cell-division cycle. These occurrences include the duplication of its DNA and a few of its organelles, followed by the cell division process, which involves dividing the cytoplasm and other parts of the parent cell into two daughter cells.

DNA synthesis or replication takes place during the S phase of a cell cycle, which happens during interphase and comes before mitosis or meiosis. By doing this, a cell’s genetic material doubles before it begins mitosis or meiosis, providing enough DNA for the cell to divide into daughter cells. Only once the cell has grown sufficiently to contain twice as much DNA and has crossed the G1 checkpoint does the S phase start. Until this occurs, p16, a protein, stops S phase.

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Which have the largest total cross-sectional areas?
O veins
O capillaries
O arteries

Answers

Answer:

capiillaries is answer

You are a public health specialist giving a presentation to a Senate committee about how to increase rates of breast-feeding in the United States. Based on the text's points, what suggestions might you make?

Answers

Being public health specialist suggestions to increase rates of breast-feeding in the United State:

-Nutritional Benefits

-Breast milk protects newborns from dyspnea

-breastfed infants have a lower risk of dying from SIDS

-breast milk builds and strengthens the newborn's immune system

-Breastfeeding helps prevent endometrial, ovarian, and cervical cancer and reduces the risk of breast cancer

Benefits of Breastfeeding Infants:

Nutritional Benefits Breast milk contains a range of nutrients that help protect newborns from illness and infection. It contains ideal ratios of carbohydrates, fats, proteins and vitamins. It also contains white blood cells, which are living cells found only in breast milk. They help prevent infection. Breast milk is an ideal choice as it contains living cells, enzymes, hormones and antibodies. Breast milk protects them from infections and fatal diseases.It protects infants from dangerous diseases such as influenza and diarrhea. Breastfed infants have a lower incidence of severe diarrhea.

Newborn airways may receive specific or general immunity from breast milk, which is important in the early postnatal period when the infant's immune system is still developing.

Breast milk protects newborns from dyspnea, wheezing, and other respiratory-related infections during the first four months of life. Because of their well-developed immune systems, formula-drinking children are more likely to develop respiratory problems, severe middle ear infections, and long-lasting middle ear infections. Breast milk is also essential to protect against herpes virus II infection.

It has also been shown that breastfed infants have a lower risk of dying from SIDS (Sudden Infant Death Syndrome), as their strong immunity to breast milk protects them from respiratory and gastrointestinal diseases.

In summary, all these results from various studies strongly indicate that breast milk builds and strengthens the newborn's immune system.

Cognitive benefits:

In addition to nutritional and immune benefits, breastfeeding supports brain development in premature babies. Improved cognitive performance and academic performance in children are associated with breastfeeding. The use and continuation of breastfeeding enhances cognitive development of social and psychomotor skills.

Health Benefits for Breastfeeding Mothers

The benefits of breastfeeding aren't just for babies. Breastfeeding a premature baby is also beneficial for the mother. Breastfeeding helps prevent endometrial, ovarian, and cervical cancer and reduces the risk of breast cancer. It protects against bone-related health problems such as osteoporosis and hip fractures and reduces the risk of anemia.

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What type of psychologist was Abraham Maslow identified as

Answers

Answer:

humanistic psychologist

Explanation:

During the 1950s, Maslow became one of the founders and driving forces behind the school of thought known as humanistic psychology. His theories—including the hierarchy of needs, self-actualization, and peak experiences—became fundamental subjects in the humanist movement.

Answer: Abraham Maslow was identified as a humanistic psychologist because his theories were fundamental subjects in the humanist movement.

The ability to manage emotions and behaviors in response to challenging events is called
O cognition
O compliance
O self-regulation
O self-esteem

Answers

The ability to manage emotions and behaviors in response to challenging events is called (c) self-regulation.

Emotions are the state of mental expressions that are influenced by various incidents and experiences. The different emotions can be happiness, sadness, anger, frustration, irritation, surprise, joy, etc. These emotions can be expressed using various responses.

Self-regulation is defined as the psychological phenomenon of controlling one's response to a situation and the emotions generated due to it. The term itself is self-explanatory for the phenomenon it demonstrates. For example, upon feeling angry on any situation if a person choses to stay calm and quiet instead of fighting and yelling, then that is self-regulation.

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Which statement best represents how structure relates to function?

(A) A deer's horizontal pupils help it scan the horizon for predators.

(B) People can develop a tolerance for spicy food over time.

(C) Tortoises in the wild can live for more than 150 years.

(D) Labrador retrievers can be black, yellow, or chocolate colored.

Answers

A

The horizontal structure if the eye helps the function of scanning the horizon

A deer's horizontal pupils help it scan the horizon for predators. Option A is correct.

The statement "A deer's horizontal pupils help it scan the horizon for predators" best represents how structure relates to function in this context.

Structure-function relationship is a fundamental concept in biology that explains how the physical attributes (structure) of an organism are adapted to perform specific tasks or functions. In option (A), the horizontal pupils of a deer are its structural feature that is specifically adapted to serve the function of scanning the horizon for predators. Horizontal pupils provide a wider field of view, allowing the deer to monitor a larger area for potential threats. This adaptation enhances the deer's survival by increasing its awareness of its surroundings and the ability to detect predators early.

Options (B), (C), and (D) also relate to biological concepts but do not directly exemplify the concept of structure-function relationship as explicitly as option (A). While option (B) talks about human adaptation to spicy food and option (C) discusses tortoise longevity, they do not emphasize the direct connection between a specific structural feature and its function. Option (D) discusses color variation in Labrador retrievers, which is more about genetic diversity rather than a structural adaptation tied to a specific function.

In summary, the relationship between the structure (horizontal pupils) of the deer and its function (scanning the horizon for predators) in option (A) best illustrates the concept of how organisms' physical attributes are shaped by natural selection to perform specific tasks essential for their survival and success in their environment.

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What are three reasons why dispensing errors occur

Answers

dispensing an incorrect medication, dosage strength or dosage form; miscalculating a dose; and failing to identify drug interactions or contraindications.

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