Answer:
exact amount of a substance
Explanation:
Experiment Titration is an analytical method used to determine the exact amount of a substance by reacting that substance with a known amount of another substance.
acid solution (of known concentration) required to neutralize it. The purpose of the titration is the detection of the equivalence point, the point at which chemically equivalent amounts of the reactants have been mixed. The amount of reactants that have been mixed at the equivalence point depends on the stoichiometry of the reaction.
Solve the given integral equation or integro-differential equation for y(t)
An integral equation is the equation where an unknown function appears under the integral sign.
What is an integral equation?Your information is incomplete. Therefore, an overview will be given.
An integral equation simply means the equation where an unknown function appears under the integral sign.
It should be noted that integral equation can be solved numerically and doesn't usually require an analytical solution.
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the boxplots above summarize two data sets, a and b. which of the following must be true? set a contains more data than set b. the box of set a contains more data than the box of set b. the data in set a have a larger range than the data in set b.
Based on the boxplots, the true statement is that the data in set A have a larger range than the data in set B.
What is a boxplot?Boxplot can be defined as a type of chart that is used to graphically illustrate the five-number summary of the data that are contained in a set with respect to skewness, locality and spread.
Based on the boxplots in the image attached below, we can deduce that the numerical data in set A have a larger range than the numerical data in set B and as such, this is considered to be the true statement.
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One hundred milliliters of water has a mass of 100 grams. what would be the mass of 50 milliliters of water?
Answer:
50 gs
Explanation:
because half of 100 gs is 50. your welcome!
Evaluate the extent to which african countries were able to conduct independent policies during the cold war period
The extent to which African countries were able to conduct independent policies during the cold war period was one that was rigorous.
It was found out that only two African states such as Ethiopia and Liberia survived while a lot of others failed but there were lots of agitations and movements by African countries against foreign policies and involvement.
What was the independence movements about?The Independence movement in Africa was one that began in the early 1960’s. It is one that brought about a lot of foreign policy opportunities to the United States as well as the Soviet Union.
A lot of African countries were able to conduct independent policies during the cold war period through the use of different movement such as the African nationalist movement and other forms of agitations.
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Question 1 with 1 blank andrea y daniel 1 of 1 (ver) todos los días. Question 2 with 1 blank los amigos 1 of 1 (encontrar) en el centro de la ciudad. Question 3 with 1 blank el padre y la madre de lisa 1 of 1 (querer) mucho. Question 4 with 1 blank javier y yo 1 of 1 (saludar) por las mañanas. Question 5 with 1 blank los compañeros de clase 1 of 1 (ayudar) con las tareas. Question 6 with 1 blank paula y su mamá 1 of 1 (llamar) por teléfono todos los días
El propósito de la pregunta es completar las oraciones usando los recíprocos reflexivos de los verbos, en tiempo presente. Las oraciones se pueden escribir así:
Andrea y Daniel se ven todos los días.Los amigos se encuentran en el centro de la ciudad.El padre y la madre de Lisa se quieren mucho.Javier y yo nos saludamos todas las mañanas.Los colegas nos ayudarán con nuestra tarea.Paula y su madre se llaman todos los días.¿Cuáles son los reflexivos recíprocos del verbo?Son aquellos cuyo sujeto realiza y sufre la acción verbal, y expresan la reciprocidad de la acción de un elemento sobre el otro.
Por tanto, esta construcción verbal se utiliza para mantener la concordancia y la cohesión en un texto.
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Read the line from "an irish airman foresees his death." a waste of breath the years behind the meter, if any, from the line is
The line from an irish airman foresees his death is simply an example of iambic pentameter.
What is an iambic pentameter?It should be noted that an iambic pentameter simply means the rhythm that the words establish in a line.
In this case, "a waste of breath the years behind the meter" is example of iambic pentameter. This is vital for the poem.
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Answer: Iambic Tetrameter
Choose the best spanish word to complete the sentence. ________ (speak) más despacio, por favor. Hablo hablar habla hablan
Answer:
Its actually Habla
Explanation:
The best Spanish word for speak is habla. Thus, option third is correct.
How to complete Spanish sentences?The words must be put in a sequence that makes perfect sense in order for the phrase to be successfully completed.
The subject of the sentence must agree with the verb, meaning that the conjugation chosen is the correct one for the verb in the issue.
In the sentence "más despacio, por habla favor", the verb "habla" which refers to speak. The present tense (indicative) first person singular of the verb "hablar" is "hablo." "Habla" wouldn't be appropriate here. The third-person conjugation may be the cause.
Therefore, Habla is the most appropriate Spanish term meaning talk. So, the third choice is the best one.
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Determine the empirical formula of a compound containing 47. 37 grams of carbon, 10. 59 grams of hydrogen, and 42. 04 grams of oxygen. In an experiment, the molar mass of the compound was determined to be 228. 276 g/mol. What is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations
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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What function is the inverse of the exponential function y = 4x?
Answer:
y
=
ln
x
ln
4
Explanation:
Switch the places of
x
,
y
and subsequently solve for
y
:
y
=
4
x
x
=
4
y
ln
(
4
y
)
=
ln
x
We need to get an explicit solution, IE, isolate
y
.
Recalling that
ln
(
a
b
)
=
b
ln
a
:
y
ln
(
4
)
=
ln
x
y
=
ln
x
ln
4
Explanation:
Rebello's preferred stock pays a dividend of $1.00 per quarter, and it sells for $55.00 per share. what is its effective annual (not nominal) rate of return?
Assuming it sells for $55.00 per share. Its effective annual (not nominal) rate of return is 7.47%.
Effective annual rate of returnUsing this formula
Effective annual rate of return=[1+(Preferred quarterly dividend+Preferred stock price]^Periods per year-1
Where:
Periods per year =4
Preferred quarterly dividend=$1.00
Preferred stock price=$55.00
Let plug in the formula
Effective annual rate of return = [1+ ($1.00/$55.00)]^4 - 1
Effective annual rate of return=(1+0.018181818)^4-1
Effective annual rate of return=(1.018181818)^4-1
Effective annual rate of return =1.0747-1
Effective annual rate of return =0.0747×100
Effective annual rate of return = 7.47%
Therefore the Effective annual rate of return will be 7.47%.
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What is king’s view of the disorder that is occurring as a result of civil rights demonstrations? it is blocking social progress. It is desirable, as african americans have been suffering injustice for generations it is necessary to the eventual defeat of injustice
Answer:
c
Explanation:
King’s view of the disorder that is occurring as a result of civil rights demonstrations is that It is necessary to the eventual defeat of injustice.
What are civil rights?Civil rights are known to be a key aspect of democracy. They are said to be the rights that guarantees the act of equal social opportunities and protection as viewed under the law putting aside race, color, etc.
Conclusively, King’s opinion in regards to the disorder that is happened as a result of civil rights demonstrations is that It is needed so that they can be able to the defeat of injustice.
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The dipole moment of the water molecule (h2o) is 6.17×10−30c⋅m. consider a water molecule located at the origin whose dipole moment p⃗ points in the +x-direction. a chlorine ion (cl−), of charge −1.60×10−19c, is located at x=3.00×10−9m. assume that x is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used.
Answer:
6.58 X 10⁻¹³ N
Explanation:
Which examples are possible environmental impacts of flooding select the two correct answers
Answer:- Groundwater recharge and pollution of water supply
Explanation:
Hope this helps. :)
Groundwater recharge and pollution of water supply.
What is ground water reachge and how does is it affected ?The natural recharge of groundwater takes place by the precipitation that falls over the land and it infiltrates deep into the soil and gets deposited forming the groundwater.
This water is said to be freshwater as its filtered. The groundwater is impacted during the time of floods as the water gets contaminated and not suited for drinking.
Find out more information about the environmental impacts.
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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)
Which example best illustrates the role of the legislative branch in national security? the united states meets with other leaders to negotiate a trade treaty. The federal government votes on a budget to provide safety and security. The federal government has different agencies that protect the nation. The courts determine whether a new law related to security is constitutional
The example which best illustrates the role of the legislative branch in national security is: A. united states meets with other leaders to negotiate a trade treaty.
What is the legislative branch?Legislative branch can be defined as one of the three branch (arm) of government that is saddled with the responsibility of creating and enacting laws in a particular country.
In the area of national security, an example which best illustrates the role of the legislative branch is the United States of America meeting with other world leaders to negotiate a trade treaty, so as to foster the buying and selling of goods among them.
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Answer:
Its B.
Explanation:
Edge
What is ironic about this excerpt? the ballerina is described as beautiful, but she is actually hideous. the news bulletin being read on the television is about harrison. the ballerina is able to read the news bulletin flawlessly while wearing a mask and handicap bags. the handicaps devised to conceal the ballerina’s strength and beauty actually accentuate them.
Thes statement 'the handicaps devised to conceal the ballerina’s strength and beauty actually accentuate them' is ironic about this excerpt.
What is irony?The irony is a phrase used to express exactly the opposite that words want to indicate about a situation.
Generally, ironies are used by adding humorous effects or emphasis on the declaration and/or expression.
The irony is an excellent literacy resource to think about a situation and/or a given context.
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Find the amount applied to principle for the third month of a 4-year loan of $ which charges percent compounded monthly with monthly payments.
The amount applied to the principal for the third month of a 4-year loan of $50,000 at an interest rate of 10% per year with monthly payments is $865.71.
What is the amount of payment applied to the principal?The amount of the payment applied to the principal in any payment period is the total payment less the interest amount for the payment period.
For example, in this case, the periodic payment is $1,268.13. However, the interest amount for the month is $402.42 ($48,289.98 x 10% x 1/12).
The amount of the payment applied to the principal is $865.71 ($1,268.13 - $402.42).
This can be computed using an online finance calculator that calculates the periodic payment and prepares a monthly payment schedule as below.
Data and Calculations:N (# of periods) = 48 (4 x 12)
I/Y (Interest per year) = 10%
PV (Present Value) = $50,000
FV (Future Value) = $0
Results:
PMT = $1,268.13
Sum of all periodic payments = $60,870.20
Total Interest = $10,870.20
Monthly Schedule
Period PV PMT Interest Principal FV
1 $50,000.00 $1,268.13 $416.67 $851.46 $49,148.54
2 $49,148.54 $1,268.13 $409.57 $858.56 48,289.98
3 $48,289.98 $1,268.13 $402.42 $865.71 $47,424.27
Thus, the amount of the payment applied to the principal is $865.71.
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Which equation demonstrates the identity property of multiplication?
Answer:its either B or D
Explanation:
Envisionmath 2.0, additional practice workbook, accelerated grade 7 solutions
An example of Envision math 2.0, additional practice work is how many percussionists in the orchestra of 20% . 60.
What is this math book about?The Envision Math 2. 0 is known to be a kind of additional work that was made for Grade 7 by a man known as Scott Foresman so as to improve the math knowledge of the student.
To solve for the Percentages, note that 20% can still be written as 0.2.
To calculate the number of percussionists, we can say that:
20%.60
=0.2. 60
= 12
Therefore, there are 12 percussionists in the above orchestra.
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Calculate, to four decimal places, the first ten terms of the sequence. an = 1 + − 3 7 n
The sequence an = 1 + (-3/7)^n is neither an arithmetic progression nor a geometric progression
The first ten terms of the sequence are 0.5714, 1.1837, 0.9213, 1.0337, 0.9855, 1.0062, 0.9973, 1.0011, 0.9995 and 1.0002
How to determine the first ten terms?The nth term of the sequence is given as:
an = 1 + (-3/7)^n
The first ten terms are calculated as follows:
a1 = 1 + (-3/7)^1 = 0.5714
a2 = 1 + (-3/7)^2 = 1.1837
a3 = 1 + (-3/7)^3 = 0.9213
a4 = 1 + (-3/7)^4 = 1.0337
a5 = 1 + (-3/7)^5 = 0.9855
a6 = 1 + (-3/7)^6 = 1.0062
a7 = 1 + (-3/7)^7 = 0.9973
a8 = 1 + (-3/7)^8 = 1.0011
a9 = 1 + (-3/7)^9 = 0.9995
a10 = 1 + (-3/7)^10 = 1.0002
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a farmer is painting a new barn. he will need to calculate the surface area of the barn to purchase the correct amount of paint. in which of the following units can the farmer expect to calculate the surface area?
Answer:
height and widthso basically he need to pain just the walls so he just need to calculate height and width
7-3 additional practice multiplying special cases envision algebra 1
An example of additional practice multiplying special cases envision algebra 1 is solving Linear equation. An example is given as 4 + (3x-1/2) = 9.
What are special cases envision algebra 1?
Envision Algebra 1 is one type of course that needs a good background on Pre-algebra functions. It is a type of algebra that starts from Linear Equations up to polynomials and factoring.
To solve for the above question, one has to separate the fraction on one side of the equation. This can be done by subtracting 4 from the two sides of the equation.
So, 3x-1/2 = 9 - 4
3x-1/2 = 5
The you have to multiply the 2 sides by using the denomiator 2 and so it will be:
3x-1 = 5 * 2
3x - 1 - 5 * 2
3x - 1 - 10
Then you rearrange like terms together.
3x - 10 + 1
3x = 11
x = 11/3
So therefore, x = 11/3
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match the words in the left-hand column to the appropriate blank in the sentences in the right-hand column. use each word only once.
The correct matching of the words to the right definitions are:
Massive star supernova → 2Nova → 3Electron degeneracy pressure → 1What is the matching of words?The matching of words to an appropriate term is described as an assessment method of identifying or determining the true purpose of that term or an item, the function it serves, and sometimes the definition of the word.
Let's assume we have the disorganized words with some terms:
Words;
massive star supernovanovaelectron degeneracy pressureDefinitions;
The radius of a white dwarf is discerned by an equilibrium between the inward force of gravity and the outward push of A(n) appears when fusion produces iron in the core of a star.A(n) takes place when hydrogen fusion kindles on the surface of a white dwarf in a binary system.The correct matching of the words to the right definitions are:
Massive star supernova → 2Nova → 3Electron degeneracy pressure → 1Learn more about matching words here:
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A tax for which high-income and low-income taxpayers pay the same fraction of income
Answer:
the impacts of the above systems on either high or low income earners may be different. proportional tax which is related to the above-mentioned case can also be referred as flat tax . the impacts of regressive taxes on wealthy people as compared to lower-income people is greater.
How can 100. ml of sodium hydroxide solution with a ph of 13.00 be converted to a sodium hydroxide solution with a ph of 12.00 ?
The solution can be evaporated such that only 10mL of the solution remains in that way, we can have a solution of pH 12.00.
What is pH?The pH refers to the degree of acidity or alkalinity of solution. We can obtain the concentration of each solution from the pH as follows;
At pH = 13;
[OH^-] = Antilog (-13) = 1 * 10^-13 M
At pH 12
[OH^-] = Antilog (-12) = 1 * 10^-12 M
Using the formula;
C1V1 =C2V2
1 * 10^-13 M * 100 mL = 1 * 10^-12 M * VmL
VmL = 1 * 10^-13 M * 100 mL/1 * 10^-12 M
VmL = 10mL
The solution can be evaporated such that only 10mL of the solution remains in that way, we can have a solution of pH 12.00.
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What type of fallacy or faulty reasoning is used in this passage? ad populum begging the claim genetic fallacy hasty generalization
The type of fallacy or faulty reasoning which is used in this passage about a Seminal US Document is: D. hasty generalization.
What is hasty generalization?Hasty generalization can be a type of fallacy or faulty reasoning that involves making a claim or drawing a conclusion based on very little evidence or instances of an event.
In this scenario, we can deduce that the type of fallacy or faulty reasoning which is used in this passage about a Seminal US Document is hasty generalization because the argument isn't logically justified by enough empirical evidence.
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Answer: D Hasty Generalization
Explanation:
"That it would not in any part of the civilized world be supposed to embrace the negro race, which, by common consent"
The Speaker is using a Generalization of the Founding Fathers to think they would not include the African Americans who were enslaved as "Citizens" despite some being born there.
What positive behaviors were demonstrated during the discussion you watched? check all that apply.
Which balanced equation represents a redox reaction
Which of the following is an example of a conclusion?
Ultraviolet light causes skin cancer.
Drinking water may cause weight loss.
Leaves may change color during fall.
Ultraviolet light may inhibit plant growth
Answer:
I think leaves may change color during fall.
Explanation:
i guess... 1/4 chance
Mathematics iii common core volume 2 volume 2 solutions
An example of Mathematics III common core volume 2 question and solution is given in the case of the subtopic algebra and geometry. An example is 1/2 (x + 42) - 60.
What is Mathematics III Common Core?This is a textbook that is written by Randall I. Charles. It has Volume and 2. The textbook acts as Teacher's Guide in teaching mathematical related functions.
The solution to the question above is given below:
1/2 (x + 42) - 60
You then multiply both sides by 2
x + 42 - 60 * 2
x + 42 - 120
x - 42
Therefore, the answer is x - 82.
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