To find the empirical formula of vanillin, convert the mass percent composition to grams assuming a 100g sample, then to moles, find the smallest mole quantity, divide all mole amounts by this smallest amount, and translate the resulting ratios into whole numbers, which are approximately 8:8:3 for vanillin, giving an empirical formula of C₈H₈O₃.
To determine the empirical formula of vanillin based on its mass percent composition, we will assume we have a 100g sample. This makes the calculation easier because the percentages can directly translate into grams. Thus, for vanillin with mass percent compositions of C, 63.15%; H, 5.30%; O, 31.55%, we have 63.15g of carbon, 5.30g of hydrogen, and 31.55g of oxygen.
First, convert the mass of each element to moles by dividing by their respective atomic masses (C: 12.01 g/mol, H: 1.008 g/mol, O: 16.00 g/mol):
Carbon: 63.15 g \\u00F7 12.01 g/mol = 5.26 moles of C
Hydrogen: 5.30 g \\u00F7 1.008 g/mol = 5.26 moles of H
Oxygen: 31.55 g \\u00F7 16.00 g/mol = 1.97 moles of O
Next, to find the ratio of the moles of each element, we divide by the smallest mole quantity calculated:
Carbon: 5.26 moles \\u00F7 1.97 moles = 2.67
Hydrogen: 5.26 moles \\u00F7 1.97 moles = 2.67
Oxygen: 1.97 moles \\u00F7 1.97 moles = 1
These ratios are approximately 8:8:3 when translated to nearest whole numbers. Therefore, the empirical formula for vanillin is C₈H₈O₃. It's important to note that while calculating, the mole ratios should be within a small threshold (typically less than 0.1) of whole numbers before rounding.
The best way to make inferences is to combine background knowledge with what ? , or the proof found in the details provided in the text
Answer:
Evidence.
Explanation:
Got it right on Edge.
Hope this helps.
Please mark me the Brainliest!
The best way to make inferences is to combine background knowledge with the evidence or details provided in the text.
What is inference?Inferences involve drawing logical conclusions or making interpretations based on available information. By combining prior knowledge or background understanding with the specific details and evidence presented in the text, one can make more accurate and informed inferences.
Background knowledge provides context, prior experiences, and existing information that can be used to make connections and fill in gaps in understanding. However, it is important to rely on the evidence and details provided in the text to support and validate the inferences being made. By integrating both background knowledge and textual evidence, one can develop a more comprehensive and reliable understanding of the information at hand.
Learn more about inference, here:
https://brainly.com/question/31414605
#SPJ7
6. Which is the best example of a round character from The Crucible?
A. Elizabeth Proctor
B. Martha Corey
C. Betty Parris
D. Ruth Putnam
Answer: A: Elizabeth Proctor
Question 6(Multiple Choice Worth 4 points) (MC) Which sentence below is correctly punctuated? Joseph's car, which his father gave him, would not start this morning. Joseph's car which his father gave him, would not start this morning. Joseph's car which his father gave him would not start this morning. Joseph's car, which his father gave him would not start this morning.
Answer:
The answer would be: Joseph's car, which his father gave him, would not start this morning.
Explanation:
hope this helps
Write five to six sentences explaining how the ideas in "Mutability” show one or more ideas expressed in "A Defence of Poetry.” Use examples from the essay and the poem in your answer.
The sentences which helps in explaining how the ideas in "Mutability” shows one or more ideas expressed in "A Defence of Poetry.” are:
He claims that poetry helps capture and preserve the precious moments of lifeHe talks about how the good moments pass very quicklyAccording to the poems Mutability and A Defence of Poetry, there are some similarities which the poets used to express themselves.
As a result of this, we can see that Shelley, the poet in Mutability shows and reveals his thoughts and ideas about the beautiful moments of life which are captured by poems and preserved forever.
Read more here:
https://brainly.com/question/9622007
You are writing a formal business letter about the need to change a school rule. Which of the following is most likely your audience and purpose? friends; to entertain administrators; to persuade children; to instruct parents; to convince
Answer:
administrators; to persuade
Explanation:
gradpoint
Which line from the story develops the central idea that moving to a new place can be hard but it can also be rewarding?
1. “I know how difficult it can be to make friends as an adult, especially in a small town where people already know one other.”
2. “Leaving the place I’ve always known means leaving behind the daily comforts I’ve always taken for granted.”
3.“As much as I try to suppress it, I am terrified of moving.”
4.“As much as starting anew in an unknown place makes my stomach churn, I know that endless opportunities to learn and develop lie ahead.”
Answer:
The answer is “As much as starting anew in an unknown place makes my stomach churn, I know that endless opportunities to learn and develop lie ahead.”
Explanation:
I got an A on the test, So it is correct.
According to the word entry, how many definitions are there for the word retribution? ret•ri•bu•tion (re-trə-ˈbyü-shən) n. 1: Something justly deserved; repayment. 2: Something given or demanded in reparation, especially punishment. [Middle English retribucioun, from Old French retribution, from Latin retribuere, to pay back.]
Answer: Two
According to this word entry, there are two definitions for the word "retribution." Retribution can refer to something that is deserved, or something that is received as payment. However, retribution can also refer to something that is given or demanded as reparation for a damage. It is easy to see how many definitions are given in a word entry because they are usually listed with numbers.
Answer:
The answer is indeed two definitions.
Explanation:
In dictionaries, word entries have specific characteristics that help readers obtain as much information as possible about a word in a clear manner. Entries follow certain rules, which allows readers to use any dictionary without problems, knowing what they'll find and in what sequence. When the word is defined, the different definitions are marked by different numbers. Let's analyze the word entry provided in the question:
ret•ri•bu•tion (re-trə-ˈbyü-shən) n. 1: Something justly deserved; repayment. 2: Something given or demanded in reparation, especially punishment.
Notice how, after number 1, we have a semicolon separating "something justly deserved" and "repayment". That semicolon shows that both parts are actually the same definition being presented in different ways. However, as soon as the definition changes, a number 2 is place in front of it. The amount of numbers is, thus, the amount of definitions. In this case, we have two numbers, two definitions.
Before he reveals himself, Odysseus gives one suitor a chance to escape. Who is that suitor?
Answer:
Amphimonus
Explanation:
Tragically, Amphimonus was the most well-behaved of the suitors. Although Odysseus did warn him of what was to happen, Athena compelled him to stay, since he was a suitor anyway. Telemachus was the one to kill him with a spear. The irony is in the fact that not only was he well behaved, he was also the one who tried to make the other suitors give up on killing Telemachus.
What does the body of an essay contain?
A.
a thesis statement
B.
one or more paragraphs, each focused on a main point
C.
a hook to draw the reader in
D.
a summary of the main points of the essay
The answer is B
Answer:the answer is B. hope this helps :)
Explanation: your welcome lol
Who is the lamb in the story lamb to the slaughter?
Answer:
Mary Maloney
Explanation:
what is the theme jefferson talks about in the declaration of independence
What is the theme of “First They Came for the Communists”? Support your answer with evidence from the poem. Explain (in our own words) how the evidence supports the theme.
The poem discusses the theme of speaking out against injustice to prevent its spread and influence.
Theme of "First They Came for the Communists":
Theme: The main theme of the poem is the dangers of staying silent and passive in the face of injustice.
Evidence: The poem describes various groups being targeted one by one, with no one left to speak up for them. This demonstrates the consequences of not standing up against oppression.
Explanation: The evidence highlights the importance of speaking out against injustice to prevent its spread and influence, emphasizing the responsibility of individuals to defend those being unjustly targeted.
How might "Night" (book by Elie Weisel) be different if it had been written as a diary, a first person account of events immediately after they happened?
How do odysseus and his men finally escape from the cyclops? explain?
Reluctantly, Odysseus tells the Phaeacians the sorry tale of his wanderings. From Troy, the winds sweep him and his men to Ismarus, city of the Cicones. The men plunder the land and, carried away by greed, stay until the reinforced ranks of the Cicones turn on them and attack. Odysseus and his crew finally escape, having lost six men per ship. A storm sent by Zeus sweeps them along for nine days before bringing them to the land of the Lotus-eaters, where the natives give some of Odysseus’s men the intoxicating fruit of the lotus. As soon as they eat this fruit, they lose all thoughts of home and long for nothing more than to stay there eating more fruit. Only by dragging his men back to the ship and locking them up can Odysseus get them off the island.
Odysseus and his men then sail through the murky night to the land of the Cyclopes, a rough and uncivilized race of one-eyed giants. After making a meal of wild goats captured on an island offshore, they cross to the mainland. There they immediately come upon a cave full of sheep and crates of milk and cheese. The men advise Odysseus to snatch some of the food and hurry off, but, to his and his crew’s detriment, he decides to linger. The cave’s inhabitant soon returns—it is the Cyclops Polyphemus, the son of Poseidon. Polyphemus makes a show of hospitality at first, but he soon turns hostile. He devours two of Odysseus’s men on the spot and imprisons Odysseus and the rest in his cave for future meals.
Arrange the jumbled words below into good sentences! 1. Produce - can - food - their - own - plants
"Produce - can - food - their - own - plants"
The correct sentence that can be formed from that jumbled words is
✐ Plants can produce their own food
A serious poem written to express strong emotion is called?
The following excerpt from "The Most Dangerous Game" is an example of what type of conflict?
What is the purpose of an adjective?
Answer:
To modify a noun
Explanation:
What is the purpose of a review?
A. to tell people how they should react to a creative work
B. to analyze the context or merit of a creative work
C. to create the context of a media piece or work
D. to simply state whether or not you like a work
in The Donner Party, how did Mr. pike die?
I REALLY NEED HELP! I will give the Brainliest!
This was the last week of Michelle’s internship. It was her junior year, and the internship was part of her “Workplace and Consumer Education” class. At first she wanted to intern at her dad’s gas station, but her teacher told her she needed to branch out and signed Michelle up at the Oakcourt Nursing Home, only 15 minutes away from her house.
Part A
Read this sentence from paragraph 3.
At first she wanted to intern at her dad’s gas station, but her teacher told her she needed to branch out and signed Michelle up at the Oakcourt Nursing Home, only 15 minutes away from her house.
Which definition of branch is used in this sentence?
a) separate from the main part
b) the part of a tree that grows out from the trunk
c) expand one's interests
d) a part that extends from something larger
Part B
Which detail from paragraph 3 best conveys the meaning of branch?
a) "the last week of Michelle’s internship"
b) "she wanted to intern at her dad’s gas station…signed Michelle up at the Oakcourt Nursing Home,"
c) "only 15 minutes away from her house"
d) "her junior year…the internship was part of her 'Workplace and Consumer Education' class"
Read this sentence
The plane we took to Texas last year was really nice but very tight seating.
Which answer identifies an adjective phrase and the word it modifies.
A. The adjective phrase “to Texas” modifies the word “took”.
B. The adjective phrase “the plane” modifies the word “Texas”.
C. The adjective phrase “really nice but very tight” modifies the word “seating”.
D. The adjective phrase “last year” modifies the word “Texas”.
Answer:
The adjective phrase really nice but very tight modifies the word seating.
Explanation:
A poem that uses words that rhyme inside a verse is said to use
Final answer:
A poem that uses words that rhyme within a single verse utilizes what is known as internal rhyme. Rhyme has historically been integral to poetry, though contemporary poets may choose to use or forego rhyme in their work. Internal rhyme creates a rhythmic and enjoyable reading experience but should be used thoughtfully within the poem's context.
Explanation:
A poem that uses words that rhyme inside a verse is said to use internal rhyme. This form of rhyming occurs when words in the middle of a line rhyme with words at the end of other lines or within the same line, contrasting with end rhyme, which is when words at the very end of the verses rhyme. While historically poetry often featured rhyme, contemporary poets may not always adhere to rhyming structures. For example, let's take a look at William Wordsworth's poem "The Daffodils":
I wandered lonely as a cloud
That floats on high o'er vales and hills,
When all at once I saw a crowd,
Poets like Shel Silverstein and Dr. Seuss are known for their rhyming stories, showing that rhyme can make language more memorable and enjoyable. However, the use of rhyme should be a conscious choice as it can influence the direction and imagery of the poem.
In “Day of the Butterfly”, the sixth grade girls learn to accept and admire myra
Objectively summarize the excerpt from “Indian Relations” in Of Plymouth Plantation.
Which events do both the author of "An Indian Father's Plea" and the author of "The School Days of an Indian Girl" describe to support their themes about education?
Read the following passage from Amy Tan's “Two Kinds” and answer the question. "Of course, you can be prodigy, too,” my mother told me when I was nine. “You can be best anything. What does Auntie Lindo know? Her daughter, she is only best tricky.” Based on the way she speaks, what can we infer about the mother? English is her first language. English is probably not her first language. She doesn't know English at all. Her first language may have been French
its not her first language
Answer:
English is probably not her first language.
Explanation:
Fill in the table to compare the EEA article "The Melting Arctic" with the NOAA video "Shrinking Ice: Impacts" below. Compare them on the basis of their tone, structure, purpose, and persuasive techniques. Also cite textual evidence of the persuasive techniques you identified.
Answer:
tone: measured, restrained dramatic
purpose to create awareness and show evidence for an opinion to persuade the audience of an opinion
purpose to create awareness and show evidence for an opinion
to persuade the audience of an opinion
structure broken down into various sections with headings that make the progression of ideas clear to readers
plays out like a two-minute film; a series of visuals accompany narration explaining the negative effects of the melting ice
opinion The effects of melting Arctic ice are potentially harmful to people, the environment, and wildlife in the Arctic and beyond.
The effects of melting Arctic ice are harmful to people, the environment, and wildlife in the Arctic and beyond. There is an urgent need to take action to prevent these effects.
persuasive techniques scientific data and expert opinion
emotional appeal, especially visuals of animals; forceful, dramatic language; background music
textual evidence for persuasive techniques
scientific data:
"the Arctic sea ice shrank below 4 million square kilometres in September 2012"
expert opinion:
"Tove Søvndahl Pedersen, Head of the Greenlandic Representation in Denmark, highlighted during her presentation day-to-day challenges that people of Greenland have to face because of climate change …"
factual information:
"Without sea ice, arctic plants and animals must either adapt or migrate. If they can’t, they will go extinct.
If that isn’t enough, people who live in coastal communities within the Arctic Circle are also battling erosion along their coastlines."
influence of persuasive techniques structured presentation of scientific data and expert opinion gives the audience a clear, logical understanding of the argument
visuals of the animals, the background music, and the harsh environmental conditions depicted make a strong emotional impact on the viewer; conveys a sense of the urgency and importance of the issue
Explanation
The article has an informative and serious tone. The video, in turn, has an urgent tone, although it also presents seriousness.
We can arrive at this answer because:
Both the video and the article show how the glaciers at the poles are melting at an amazing rate, and that's not a good sign.The article focuses on informing why this is happening, the speed at which the ice is melting and the results we can expect from this melting process.To persuade readers of the seriousness of this issue, the article makes a strong appeal to ethos, showing arguments from experts on the subject, to assure readers that this meltdown is a matter of concern;The video, in turn, prefers to persuade the audience through pathos, stimulating the public's sentimentality showing how animals have been harmed by the melting of the ice.In this case, the video focuses on showing the effects of the melting and the impacts on life on the planet.The purpose of the video is to alert you to what is happening and to highlight the idea that something needs to be done urgently.In this case, we can see that even using the same subject, the article and video have different purposes and structures, both being efficient in their ways.
More information:
https://brainly.com/question/12605632?referrer=searchResults
How many stories do the pilgrims tell in the canterbury tales?
Final answer:
In 'The Canterbury Tales,' the pilgrims were supposed to tell four stories each according to the initial plan set by the host, but Geoffrey Chaucer completed only 24 tales, with each narrator telling just one story.
Explanation:
In The Canterbury Tales by Geoffrey Chaucer, the collection of stories is told by a group of pilgrims as they travel to the shrine of Saint Thomas Becket in Canterbury Cathedral. The framework of the tales is set up in the 'General Prologue' where the host of the group, the innkeeper Harry Bailey, proposes that each pilgrim tell two tales on the way to Canterbury and two more tales on the way back to encourage a merry journey and reward the best storyteller with a dinner at the others' expense upon their return. However, Chaucer completed only 24 tales before his death, and the narrators of those tales tell only one story each, rather than the four that had been proposed originally.
What are some examples of code switching?