Describe the preparation of 2.00 l of 0.100 m glycine buffer, ph 9.0, from glycine and 1.00 m naoh. what mass of glycine is required? the appropriate pka of glycine is 9.6.
Final answer:
To prepare a 2.00 L solution of 0.100 M glycine buffer at pH 9.0, approximately 15.014 grams of glycine are required.
Explanation:
To prepare a 2.00 L solution of 0.100 M glycine buffer at pH 9.0, we need to calculate the mass of glycine required. The formula for glycine is C₂H₅NO₂, with a molar mass of 75.07 g/mol. First, we determine the number of moles of glycine needed:
Number of moles = concentration (mol/L) x volume (L)
Number of moles = 0.100 mol/L x 2.00 L = 0.200 mol
Next, we calculate the mass of glycine:
Mass = number of moles x molar mass
Mass = 0.200 mol x 75.07 g/mol = 15.014 g
Therefore, approximately 15.014 grams of glycine are required to prepare the buffer solution.
Brancusi’s well-known sculpture of a bird was intended to ____________
a.
display the physical qualities of a bird.
b.
emphasize the relative size of birds to humans.
c.
show the calming attributes of birds.
d.
emphasize the graceful qualities of a bird
Answer:
d - emphasize the graceful qualities of a bird.
Explanation:
Throughout his life, Constantin Brancusi (French, born in Romania, 1876–1957) was obsessed with the theme of birds. In his piece Bird in Space (1923), his purpose was not to represent a particular bird but to capture the essence of flight. For this reason, it removed the wings and other parts of the body, lengthened the body and reduced the head and beak to a sloping oval plane. This work is the first in a series in which Brancusi worked for the next two decades until the 1940s. There are seven other marble and nine bronze versions.
In early medieval painting, the traditional themes of Greek and Roman art were replaced by paintings that focused largely on
A.the lives of common people. B.battle scenes. C.the afterlife. D.Christian themes.
Answer:
christan nohal themes lol
Explanation:
What was the main goal of realism
Final answer:
Realism in international relations mainly aims at ensuring the survival of the state, highlighting the importance of states protecting their own interests and power in an environment lacking a global authoritative power, leading to competition and actions based on power and force.
Explanation:
The main goal of realism in international relations is to explain the reality of politics on a global scale. It emphasizes the selfish nature of humans and the lack of universal authority to govern states. According to realism, the highest goal is the survival of the state. States operate under the ethics of responsibility and are driven by competition, seeking to secure power and protect their interests, often through unsavoury actions like war when they are deemed necessary for national interest.
Advocates for realism believe it provides a convincing account of the state system since there is no global sovereign, resulting in what is termed 'international anarchy'. This perspective is reflected in policies advocating for power and force in state actions. While realism is criticized for potentially perpetuating a violent and confrontational international arena, it still serves as a significant analytical tool for understanding international relations and as a guide for policymakers.
Twentieth-century skyscrapers, devoid of ornamentation, are examples of the ____ style in architecture.
switch off light when outside is bright
Please suggest a simple image that can be easily drawn to go with this quote, has to represent it perfectly
A suggested image to represent the quote 'switch off light when outside is bright' could be an illustration of a person turning off a light switch while standing outside on a sunny day.
An image that can represent the quote 'switch off light when outside is bright' could be a simple illustration of a person turning off a light switch while standing outside on a sunny day. The person can be shown with a shadow and the surrounding environment can be depicted with a bright sun and clear sky. This image would convey the idea of conserving energy by turning off unnecessary lights when there is already ample natural light available.
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If Goofy and Pluto are both dogs, why is Goofy superior to Pluto?
What is the meaning of color
I would probably say that the meaning of color is like the emotions, and even everything around you, what you touch, and what you eat!
Hope this helps
How is a forensic photographers approach to taking a picture different than others?
Forensic photography is distinct from other types of photography due to its objective and accurate representation of crime scenes for legal evidence, with a focus on detail, neutrality, and admissibility in court.
How a Forensic Photographer's Approach Differs
A forensic photographer's approach to taking a picture is fundamentally different from that of other photographers due to the purpose and application of the images. Unlike in personal photography, photojournalism, or professional creative photography, where the motive can be aesthetic, narrative, or a blend of both, forensic photography must prioritize accuracy and objectivity above all else. This unique type of photography is often linked to legal proceedings where the photographs are used as evidence to establish facts within a case.
Forensic photographs must represent the truth of a scene without alteration, capturing everything exactly as it is, to serve as reliable evidence in a court of law. Therefore, they must be free from any bias that could be introduced through creative angles, lighting, or composition. Every detail in a forensic photograph is significant, potentially holding the key to what happened before, during, and after a crime was committed. The photographer must be meticulous in documenting the scene from multiple angles, ensuring that nothing is overlooked. Each photo represents a moment frozen in time, capturing not only what is immediately visible but also implying what can be inferred about the surrounding circumstances.
Another essential aspect is the reproduction of the photos for legal processes such as police lineups or photo spreads. The subjects must be photographed in similar conditions to avoid bias, ensuring that the procedure is fair and the evidence is admissible. Ultimately, the practice of forensic photography is a disciplined art that requires an intimate understanding of legal requirements, attention to detail, and an unwavering commitment to objectivity.
Harry is a working professional. Every day for lunch, he buys a hot dog from a hot dog stand near his office. Which type of commercial food service operation does this hot dog stand represent?
Harry's lunchtime hot dog stand is an example of a quick service type of commercial food service operation, characterized by fast preparation and service, minimal service and a focus on a specific type of food.
Explanation:The hot dog stand referenced in the question represents a form of quick service food operation within the commercial food service industry. Quick service, also known as fast food, is characterized by fast food preparation and service, minimal service, and low-cost menu items. Like the hot dog stand mentioned, these establishments typically specialize in a limited type of food or dish.
Harry's lunchtime hot dog stand is an example of a quick service type of commercial food service operation, characterized by fast preparation and service, minimal service and a focus on a specific type of food.
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1)Name the art piece above, its location, and the technique the artist used to create it. What can be observed about this piece and the technique used?
2)What is serigraphy and what is it primarily used for? Name the popular term for serigraphy.
3)Define the following terms:
- relief
- ground
- etch
4)Define the following terms:
- registration
- press
- keyblock
Relief: Sculptured artwork on a flat surface where some parts are raised parts have been carved away. Ground: A waxy material used in engraving. Etch: The product made by using a metal plate and special tools to scratch an image into a waxy surface, and is then dipped into an acid bath.
what type of lines are used to help create a sense of movement in a piece of art
In antony's conversation with octavius in act iv, scene i, of the tragedy of julius caesar, we learn that antony is ____.
Final answer:
In Act IV, Scene I of 'The Tragedy of Julius Caesar,' Antony is shown to be a pragmatic and ruthless leader, reflected by his hardened political actions and alliance choices.
Explanation:
In Antony's conversation with Octavius in Act IV, Scene I, of The Tragedy of Julius Caesar, we learn that Antony has transformed from a once promising youth into a more cynical and calculating figure. Antony's early life was one of brilliance and promise, but his associations and decisions led him to accrue heavy debts and engage in political manipulation. His alignment with Cleopatra and his participation in the Second Triumvirate display his strategic, if ultimately unsuccessful, grab for power and control within the Roman Empire. In this scene particularly, Antony's pragmatic and ruthless traits come to the forefront, as he and Octavius prepare to engage with their opponents. Antony's past, including a noted hatred for Cicero borne from his stepfather's execution, his heavy indebtedness from his youth, and the escalation of his rivalry with Octavian leading to civil war, all culminate in his portrayal as a hardened and ambitious political player in this interaction with Octavius.
How is a mezzotint piece created? Why is it unique and important to Intaglio printmaking?
Mezzotint piece is created by a metal plate is gone over with a special tool to cover it with a burred texture that, when inked in the standard intaglio manner, will print as pure black. The artist then uses special tools to polish areas of the plate. The smoother the finish, the lighter it will print. The most similar technique in appearance is scratchboard, although much subtler effects can be achieved with mezzoprint.
What is Mezzotint piece technique?Mezzotint is a sepia printmaking process of the intaglio family. It was the first printing process that yielded half-tones without using line- or dot-based techniques like hatching, cross-hatching or stipple. Mezzotint achieves tonality by roughening a metal plate with thousands of little dots made by a metal technique with small teeth, called a "rocker". In printing, the tiny pits in the plate retain the ink when the face of the plate is wiped clean. This technique can achieve a high level of quality and richness in the print.
"Mezzotint is often combined with other intaglio techniques, usually etching and engraving. The process was especially widely used in England from the eighteenth century, to reproduce portraits and other paintings. It was somewhat in competition with the other main tonal technique of the day, aquatint. Since the mid-nineteenth century it has comparable results more easily. Robert Kipniss and Peter Ilsted are two notable 20th-century exponents of the technique; M. C. Escher also made eight mezzotints" been relatively little used, as lithography and other techniques produced "
Who are artists?An artist is a person who creates novels, poems, films, or other things which can be considered as works of art. His books are easily to read, yet he is a serious artist. An artist is a performer such as a musician, actor, or dancer.
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Why did Christianity spread rapidly in the fourth century?
Christianity spread rapidly in the fourth century because Christianity was formally recognized by the Roman government
What musical element occurs when a rhythm of four is played over a rhythm of three?
Answer:
polyrhythm
Explanation:
In music, the concept of Polyrhythm presents itself as the simultaneity of two conflicting rhythms. Stylization of the cantochon, by means of the repetition of notes, of the abundant use of quateralters of varied number of elements and of polyrhythmia. Polyrhythmia can serve as a bridge to group improvisation in music.
When water-cooled condensers are used fror distillation or for reluxing a liquid, the water enters the condensers at the lowest point and leaves at the highest, why?
Name the famous song that paul mccartney played when he auditioned for the quarry men:
Twenty Flight Rock
Further Explanation:
The Quarry men was a British rock and roll group which was formed by John Lennon. This group was formed in year 1956 and later this group became and started to be known by the name of the Beatles in year and this band originally consisted of Lennon and his school-friends. It was in the year 1957 when they played for the first time at St. Peter’s Church in Woolton.
They were playing the song named ‘Come Go with me” and when Paul McCartney first came into the limelight, during his scout hut and after that when the set was finished,Ivan Vaughan introduced McCartney to Lennon was the first time and they both had some chat with each other before they set started making arrangements for their last set of the day which was ‘Grand Dance’. In that, McCartney demonstrated that how he can do tuning of his guitar and after doing that he sand famous song by Eddie Cochran, ‘Twenty Flight Rock’ along with a medley of the Little Richard songs and that was the first time when Paul McCartney played for the first time for the Quarry men.
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Answer Details:
Grade: High School
Chapter: The Quarrymen
Subject: Arts
Keywords:
The Quarrymen, The Beatles, John Lennon, Paul McCartney, Twenty flight rock, arrangements, Vaughan, arrived.
What is true about analyzing art
James stewart early transcendentals solutions
a. True
b. False quiz
Answer:
a. True
Explanation:
The Women of Willendorf is a cave painting showing a woman hunting a bison true or fals
The statement that the Women of Willendorf is a cave painting showing a woman hunting a bison is false. In contrast, The Woman of Willendorf, formerly called Venus of Willendorf, isa a small statue found in 1908 (not a painting). The statue represents a female figure with rounded curves, exaggerated breasts and hips, and obvious pubic triangle.
The sum of a number and 20 is no more than the sum of the square of the number and 9. Which of the following inequalities can be used to determine this unknown number?
Answer:
[tex]x + 20 \leq \sqrt{x} + 9[/tex]
Explanation:
The number is x.
The sum of a number and 20 is no more than the sum of the square of the number and 9.
This means that the sum of x and 20 is lesser or equal than the sum of the square of x and 9. So:
[tex]x + 20 \leq \sqrt{x} + 9[/tex]
Cross-hatching provides an illusion of various ______(1)_______, while impasto provides an illusion of ______(2)_______.
Answer: d. values and depth
Explanation: Trust
Graphic design is often used in street signs.
True
False
what characteristics of ancient art influenced Renaissance artists
What is the long, thin rectangle above the front door called?
The long, thin rectangle above a front door is called a transom. It's an architectural feature found in older buildings and homes, used to allow light and air into spaces behind doors.
Explanation:The long, thin rectangle above the front door is commonly called a transom. This term is used in architecture and engineering to denote any structural piece that lies crosswise. In relation to doors and windows, a transom is the structural beam or bar separating the door from the window or fanlight above it. The main purpose of a transom is to let light and air into areas behind doors. You can find transoms in older buildings and homes as they were very popular in the 19th century for their aesthetic appeal and functionality.
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Name the art piece above, its location, and the technique the artist used to create it. What can be observed about this piece and the technique used?
This is a stained glass piece, found in the Chartes Cathedral in France. We can see how light coming through behind creates a colorful and illuminating image.
this should help :)
Name of this art piece is "The North Rose Window, the stained glass window" its location is "Chartres Cathedral Church of France" the technique is called "staining glass for windows using metal oxides".
What can be observed about this piece and the technique used?This window, has the theme of the Old Testament prophecies being fulfilled with Mary as their instrument, hence the central panel depicts Jesus Christ as a child with Mary. It is encircled by 12 elliptical panels showing four doves and eight angels. diamond-shaped panels depict the 12 kings of Judah, Christ's ancestors. The outer ring of semi-circular panels shows the 12 minor prophets. Between the squares and semi-circles are quatrefoil panels with fleurs-de-lis, the French royal coat of arms and reminding that the window was donated by Queen Blanche of Castille.
The technique of staining glass for windows using metal oxides dates back to at least the 7th century CE and the churches of the Byzantine Empire. However, the craft really became a refined art in the 12th and 13th centuries CE. The five main colours used to 'stain' glass were bright ruby red, which came from copper oxide, sapphire blue from cobalt oxide, green from iron oxide, yellow from sulphur or soot, and purple from manganese oxide.
Hence, it is called stained glass painting and located in France.
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The Romantic period saw the development of the modern orchestra. true or false
Identify all the ways that the American colonists tried to solve their problems with Great Britain before they fought for independence. Select all that apply. A. held protests B. threatened the king C. sent a peace proposal to King George D. attended conventions with all colonies represented E. gave their weapons to the British F. placed a tax on tea and stamps G. gave all powers to one colony
The American colonists tried to resolve their issues with Great Britain by holding protests, sending a peace proposal to King George, and attending conventions with representation from all colonies prior to declaring independence.
B,C and D are corrrect
Explanation:Before resorting to fighting for their independence, American colonists tried several ways to resolve their issues with Great Britain. Some of their most notable efforts include: holding protests against unpopular British policies; sending a peace proposal to King George III, now known as the Olive Branch Petition, in a failed attempt at reconciliation; and attending conventions with all colonies represented, such as the First and Second Continental Congresses, to debate and coordinate their responses to Britian's actions.
Options E, F and G are not accurate. The colonists did not give their weapons to the British, place a tax on tea and stamps, or gave all powers to one colony. The taxes were imposed by the British government and were one of the major causes of discontent among colonists. Each American colony had its own local government and they did not submit to a single rule until the formation of the Continental Congress.
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Katrina owns a fitness center and provides a juice bar that serves refreshments to members after their workouts. Which type of noncommercial food service operation is this juice bar?
employers
educational institutions
other
healthcare
Answer:
Other
Explanation:
This is the correct answer for Plato users