Considering the definition of empirical formula, the empirical formula is C₃H₈O₂ and the molecular formula is C₉H₂₄O₆.
Definition of empirical formulaThe empirical formula is the simplest expression to represent a chemical compound, which indicates the elements that are present and the minimum proportion in whole numbers that exist between its atoms, that is, the subscripts of chemical formulas are reduced to the most integers. small as possible.
Empirical formula in this caseIn this case, you have:
Carbon (C): 47.37 gramsHydrogen (H): 10.59 gramsOxygen (O): 42.04 gramsThen it is possible to calculate the number of moles of each atom in the molecule, taking into account the corresponding molar mass:
Carbon (C): [tex]\frac{47.37 grams}{12 \frac{g}{mole} }[/tex]= 3.95 molesHydrogen (H): [tex]\frac{10.59 grams}{1 \frac{g}{mole} }[/tex]= 10.59 molesOxygen (O): [tex]\frac{42.04 grams}{16 \frac{g}{mole} }[/tex]= 2.63 molesThe empirical formula must be expressed using whole number relationships, for this the numbers of moles are divided by the smallest result of those obtained. In this case:
Carbon (C): [tex]\frac{3.95 moles}{2.63 moles }[/tex]= 1.5Hydrogen (H): [tex]\frac{10.59 moles}{2.63 moles }[/tex]= 4Oxygen (O): [tex]\frac{2.63 moles}{2.63 moles }[/tex]= 1Finally, since in the empirical formula the numbers of moles must be expressed in whole numbers, the ratio of atoms is multiplied by some number with which everything is obtained in simple whole numbers (in this case by 2):
Carbon (C): 1.5× 2= 3Hydrogen (H): 4× 2= 8Oxygen (O): 1× 2= 2Therefore the C: H: O mole ratio is 3: 8: 2
Finally, the empirical formula is C₃H₈O₂.
Molecular formulaTo obtain the molecular formula you must relate its molecular weight (PMc) with the molecular weight of the empirical formula (PMfe).
PMfe= PM (C₃H₈O₂)= 76 g/mole
The molar mass of the compound (PMc) was determined to be 228.276 g/mol. Dividing this mass PMc by the molar mass of the empirical formula PMfe gives:
228.276 g/mol ÷ 76 g/mole= 3
This means that in the molecular formula there are 3 unit formulas (empirical formulas), so it is necessary to multiply the number of all atoms by 3.
Then, the molecular formula is C₉H₂₄O₆.
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17.3 subtracting polynomial expressions answer key
An example of 17.3 subtracting polynomial expressions question is solve for 2q² - q - 8) - (2 q² + q - 4).
What is polynomial expressions?A polynomial is known to be a type of an expression that is made up of variables, constants and exponents. They are often combined using the mathematical terms such as addition, subtraction, etc.
2 q² - q - 8) - (2 q² + q - 4)
= (2 q² - q - 8) + (-2 q² - q + 4)
Then you have to rewrite subtraction as addition and then Group like terms together;
= (2 q² - 2 q²) + (-q - q) + (-8 + 4)
= -2q - 4
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7-7 skills practice geometric sequences as exponential functions
An example of 7-7 skills practice geometric sequences is Determine if the sequence is arithmetic, geometric, or neither: 1. 1, –5, –11, –17,
What is 7-7 skills practice geometric sequences?This is known to be a practice workbook that is meant to impact some understanding about geometry to students. It is made of exercises and their solutions.
From the above, the function is Arithmetic and it has a common ; there difference of –6.
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Which equation demonstrates the identity property of multiplication?
Answer:its either B or D
Explanation:
The volume of a cylinder is 400???? cubic cm and its height is 4 cm.what is the radius?
Answer: 5.64 cm
Explanation:
Volume of a cylinder = π * r^2 * h →
400 = π * r^2 * 4 →
r = 5.64 cm :)
Compare and contrast how the elements are used in the different genres this hybrid uses metric formats to tell a true story.
The way elements are used in the different genres is that Genre as it s made up 4 elements such as character, story, plot and setting, they are said to be mixed up together.
They can be mixed up as Story (Action) + Plot + Character + Setting = Genre. Some other kinds of genres are crime, war, spy, adventure, etc.
Note that a lot of genres or forms of literature often depicts themes or topics in a different way.
To Compare and Contrast genre, one must shows what is similar and what is different about the genre in question. Knowing how the genres are alike and difference can helps a person to have a better study of genre.
What is the differences in the use of genre/A lot of sub-genres of comedy are known to be different from one another when one looks at the fluctuations in terms of the characters and the story.
The Characteristics of Genre are:
Form: This shows one how a writer makes, structures, and put together a written work. Style: This is known to be a method used by writer in terms of words and language to pass out meaning, mood, etc.Subject: This is known to be the main topic the genre is based on, etc.Learn more about genres from
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What is the product of 33 and 10\sqrt{28}10 28 in simplest radical form?
The product of 3 and 10√28, in its simplest radical form is: 60√7.
What is Product?Product simiply means the result you get by multiplying two quantities.
Given the values, 3 and 10√28, the product would be found as shown below:
3 × 10√28
= 30√28
Simplify the radical
30√(4 × 7)
30 × 2√7
= 60√7
Therefore, the product of 3 and 10√28, in its simplest radical form is: 60√7.
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Which would be the best source to use for a research project on the best types of soil for certain vegetables?
Answer: an interview with an agricultural specialist
Explanation:
Read the excerpt from "the charge of the light brigade." cannon to right of them, cannon to left of them, cannon behind them volley’d and thunder’d; storm’d at with shot and shell, while horse and hero fell, they that had fought so well came thro’ the jaws of death, back from the mouth of hell, all that was left of them, left of six hundred. why does tennyson most likely repeat the word "cannon" in the first three lines of the excerpt? to prove that the enemy had a larger store of weapons to identify the primary weapon used in the battle to demonstrate the fear the soldiers must have felt to show that the assault on the soldiers was nonstop
Answer:
Tennyson most likely repeats the word "cannon" in the first three lines of the excerpt to show that the assault on the soldiers was nonstop. By repeating the word "cannon," Tennyson emphasizes the constant barrage of artillery fire the soldiers faced from all sides. This repetition creates a sense of overwhelming and relentless attack, highlighting the danger and intensity of the battle. It also underscores the bravery and resilience of the soldiers who faced such a relentless onslaught.
Suppose a five-year, bond with annual coupons has a price of and a yield to maturity of . what is the bond's coupon rate?
The bond's coupon rate with an annual coupon that has a price of $903.35 and the yield to maturity will be 3.33%.
How to calculate the coupon rate?It should be noted that the formula for calculating the coupon rate is given as:
= Annual coupon / Face value
From the complete question, the annual coupon is $33.30 and the face value is $1000. Therefore, the coupon rate will be:
= Annual coupon / Face value
= 33.30/1000
= 3.33%
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Since 2000 aaron donald is the only dt to win defensive rookie of the year
Answer:
yes because he is really good
Explanation:
yes
Since Tim Duncan in 1998, a rookie hasn't been selected to one of the NBA's All-Defensive teams. According to Basketball Reference, the former star player for the San Antonio Spurs is one of five first-year players who made the squad.
What Aaron Donald, dt to win defensive rookie of the year?Most-graded rookie defender: Jack Jones of the New England Patriots has earned an exceptional 87.1 overall rating, which is also the highest rating among all NFL cornerbacks.
Five of the other 10 players who had a 20/20 season in their first year went on to win the Rookie of the Year title for their respective leagues. And the other five received significant consideration for the prize, except Ellis Burks, who received zero votes.
People often cite the Baltimore Ravens from 2000 as an example of how defense can win championships. The Ravens defeated their opponents by a score of 4-0 that season.
Therefore, They hold the record for fewest rushing yards against and fewest points surrendered in a season of 16 games, respectively.
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with the exception of one or two news stations, there is not much credible evidence that any particular mainstream news source is explicitly biased in one direction or the other in terms of its news coverage.
There is credible evidence that mainstream news source is explicitly biased in one direction or the other in terms of its news coverage is a true statement.
What is the role of overriding bias in the news?Research has shown that there is overriding bias in the news where it goes to one direction of stories with the aim of getting the largest audience.
Note that media bias is said to be a deliberate or unintentional bending of news reporting toward one direction as a result of political views, etc.
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Fill in the blank with the comparative form of the underlined modifier
Answer:
The following are the answers for each questions:
1. It was worse than the movie we saw last week
2. Felipe showed much concern about the poor quality of the movie.
Belinda showed even more concern than Felipe
3. A lot of movies are filmed in New York
Explanation:
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Which of the statements describes that a quadrilateral is a parallelogram
I don't see the choices, but I will give you some definitions which can hopefully help you
Definition of Parallelogram: a quadrilateral that has two pairs of opposite sides are parallel
Hope that helps!
Sofie claims to be a tasting expert. To test her abilities, someone bakes Sofie a cake using 3 of the following
ingredients:
Coffee Vanilla
Nutmeg Cinnamon
Sea salt
Ginger
Sofie's challenge is to identify which set of 3 ingredients was used in the cake. Suppose that Sofie is just
randomly guessing.
What is the probability that Sofie correctly identifies the set of 3 ingredients in the cake?
Answer:
1/20
Explanation:
A company produces light bulbs each week. written in scientific notation, which is the best estimate of how many light bulbs the company will make in weeks? light bulbs light bulbs light bulbs light bulbs
The number of light bulbs that the firm will make in 9.36 × 10² weeks is 4.27 × 10^(6) bulbs.
What is Scientific notation?This is known to be the method used to write a figure that very large or very small numbers.
Note that when the company makes a fixed quantity of light bulbs in a week, the amount of light bulbs can only be seen or found by multiplying that quantity by the number of weeks.
4.56 * 10^3 * 9.36 * 10^2
= 42.6816 * 10^5
= 4.26816 * 10^6.
Therefore, The company will produce 4.27 * 10^6 light bulbs in that time frame.
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A company produces 4.56*10^3 light bulbs each week. Written in scientific notation, which is the best estimate of how many light bulbs the company will make in 9.36*10^2 weeks?
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How has the earth's climate changed over the last 150 years
Answer:
The University of California Riverside and NASA estimate human activity has increased the amount of carbon dioxide in the atmosphere by about 30 percent in the past 150 years. The amount of methane, a potent greenhouse gas produced by decomposing plant and animal matter, is also increasing
Explanation:
Consider the theme, "making tough choices. " from the point of view of a principal who made school uniforms mandatory, write a one-paragraph letter to parents explaining your decision
The act of making tough choices. "The letter to my parents is written below.
Dear Mum and Dad.
You too are the best gift of life that anyone could ask for. You taught me to always stand for what is right and best for me and as such I have made up my mind to study at UCL. I know its far from Home and you people want me to be closer to home but I have to do this since it has the best facilities that I need for my program. I love you. Please be happy and accept my decision.
Yours lovely
Jane.
What does a tough decision implies?The term tough decision are known to be those decisions that are not easy to do; and thus they requires effort.
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Answer:
I decided to make uniforms mandatory because I believe they will reduce bullying and allow students to focus on what is important in school. I ask that you support my decision and discuss the benefits of uniforms with your children. If you have any questions or concerns, please contact my office.
Explanation:
this was right on edgeunity (make sure to switch up the words if ur using this)
What are some helpful tips for performing well on the SAT?
Remove three incorrect answers from the equation. Always be aware of your errors. Pay attention to the connotation and context of what you're saying. Use Make the most of the evidence questions. Read passages in a strategic manner. Passage Introductions Should Not Be Ignored. Become engrossed in the passages. Before taking the test, read the section instructions. First, answer the questions you already know the answers to. Remove any wrong responses. Maintain a tidy appearance. Keep an eye out for stray marks. The majority of the time, your initial response is correct. There is just one response that is correct.
which of the following is an effect of norepinephrine binding to beta 2 adrenergic receptors?
The effect of norepinephrine binding to beta 2 adrenergic receptors lead to vasodilation.
What is vasodilation?Vasodilation can be defined as the process in which the blood vessels enlarges because the blood vessel is inactive.
Vasolidation can occur due to the following:
ExerciseSide effect of medicationBody temperature etcTherefore when the norepinephrine is binding the blood vessels lead to what is called vasodilation.
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What are your impressions of the following character? is he a strong or weak character? jasper what are his primary characteristics?
My impressions of the characters from the story in his steps are :
Rachel is strong.Her primary characteristics is that she is a beautiful singer.Jasper is a Young writer.What is the term impression about in the text?Impression connote the views or opinions one has concerning a person.
Based on the text, The impressions of the Rachel character is known to be that she has a strong character. Rachel primary characteristics is that she is in her 20's and a beautiful singer at her Church.
Jasper on the other hand is quite a young writer that was in love with Rachel and He also proposed marriage to her.
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What are your impressions of the following character? Is she a strong or weak character? (from the story in his steps)
Rachel
What are her primary characteristics?
What are your impressions of the following character? Is he a strong or weak character?
Jasper
What are his primary characteristics?
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How are the three types of corporate combinations usually affected by antitrust policy
Note that not all business organization are affected by antitrust and as such the three types of corporate combinations are usually affected by antitrust policy in terms of market share, vertical merger and others.
What is the aim of an antitrust policy?The antitrust laws are set up to boast and protect competition in business.
The three different types of corporate combinations are:
HorizontalVerticalConglomerate
Companies that are said to be of same phase of production are known to be horizontal combination and that of vertical combination is known to be the kind of merger between companies that said to be of different phases of production of a product.
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The horizontal part of a step is called the tread. the vertical part is called the riser. the recommended riser-to-tread ratio is 7 inches : 11 inches. a. find the value of x for stairs built using the recommended riser-to-tread ratio. round your answer to the nearest tenth.
The value of x for these stairs built by using the recommended riser-to-tread ratio is 32.5°.
Given the following data:
Length of riser = 7 inches.Length of tread = 11 inches.Ratio = 7:11.How to determine the value of x.In Mathematics, a tread refers to the horizontal part of a step while a riser is the vertical part of a step.
Note: Let the angle of inclination be x.
In Geometry, two (2) lines that are parallel have the same alternate interior angles. Thus, the angle of inclination between the riser and tread is given by:
[tex]Tan x = \frac{rise}{tread} \\\\Tan x = \frac{7}{11} \\\\Tan x = 0.6364\\\\x=tan^{-1}0.6364[/tex]
x = 32.5°.
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A woman sells her home for $450 000. she had purchased it for $300 000
Answer:
$750
Explanation:
450+300=$750 u add 4+3=7 add 5+0=5 add a zero at the end equals 750
Angie sees a hot air balloon in the sky from her spot on the ground
Answer:
cool. do you have the rest of the problem?
Explanation:
Answer:
50.15 ft
Explanation:
done this problem
Hope this helps
Calculate the number of moles present in 1.29 x 10²⁴ molecules of hf
Answer:
According to Avogadro's number there are atoms present in one mole.
Therefore, we will calculate the number of moles present in atoms as follows.
Number of moles =
= 2.14 mol
Explanation:
Choose the best translation: necklace bolso manga collar botón
Answer: collar
Explanation: trust me
Answer: collar
Explanation: did on edg
The combustion of ethane in the presence of excess oxygen yields carbon dioxide and water: 2c2h6 (g) + 7o2 (g) → 4co2 (g) + 6h2o (l) the value of δs° for this reaction is ________ j/k⋅mol.
The value of entropy change (δs°) for this chemical reaction is equal to -620.4 J/molK.
What is entropy change?The entropy change of a chemical reaction can be defined as the difference between the total entropy change that is associated with the products and the total entropy change for the reactants.
In Chemistry, the standard entropy of formation for the given chemical compounds and element are:
[tex]S_{O^2}= 205\;J/molK[/tex]
[tex]S_{C_2H_6}= 229.6\;J/molK[/tex]
[tex]S_{H_2O}= 69.9\;J/molK[/tex]
[tex]S_{CO_2}= 213.6\;J/molK[/tex]
Mathematically, the entropy change of a chemical reaction is given by this expression:
[tex]\Delta S_{rxn}=\sum [n \times products]-\sum [n \times reactants]\\\\\Delta S_{rxn}=\sum [4S_{CO_2}+ 6S_{H_2O}]-\sum [2S_{C_2H_6}+ 7S_{O_2}]\\\\\Delta S_{rxn}=\sum [(4\times 213.6) + (6 \times 69.9)]-\sum [(2\times 229.6) + (7 \times 205)]\\\\\Delta S_{rxn}=\sum [854.4 + 419.4]-\sum [459.2 +1435]\\\\\Delta S_{rxn}=\sum [1273.8]-\sum [1894.2]\\\\\Delta S_{rxn}=-620.4\;J/molK[/tex]
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Describe what these people are doing or feeling using an expression with tener
People often feel receptive or possessive when using an expression with tener.
What is a tener expression?The Spanish verb "tener" is known to be a term that connotes, to have or possess.
Note that the term is often used in a lot of ways such as "to accommodate", "to experience", "to hold", etc.
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Big ideas math algebra 1 student journal answer key
Answer:
thats not a real question and just look lt up
Explanation:
A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. the administrator notices that the network throughput appears lower than the bandwidth expected. which three factors could influence the differences in throughput? (choose three.)
The three factors that could influence differences in lower levels of network throughput compared to the bandwidth expected are:
The current volume of traffic crossing the networkThe kind of traffic that passes through the networkThe delay (latency) that is created by the number of network device(s) connections that the data is crossing.What are throughput and bandwidth in networking?Throughput indicates the amount of data sent from a source at any particular time, whereas bandwidth indicates the amount of data that might potentially be transmitted from a station at any given moment.
You have crucial data for measuring network performance provided you know the network's throughput and bandwidth levels. Operators who want a comprehensive view of their network's performance need to understand how throughput, as well as, bandwidth is operating.
The three factors that could influence differences in lower levels of network throughput compared to the bandwidth expected are:
The current volume of traffic crossing the networkThe kind of traffic that passes through the networkThe delay (latency) that is created by the number of network device(s) connections that the data is crossing.Learn more about network throughput and bandwidth here:
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