Nacl has a delta.hfus = 30.2 kj/mol and a delta.hvap = 171 kj/mol. what mass of nacl releases 452 kj of heat as it changes into a liquid?

Answers

Answer 1

Answer:

D. 155g

Explanation:

Edge?


Related Questions

Which sales channel has been opened to manufacturers because of digital tools

Answers

The sales channel that has been opened to manufacturers because of digital tools is called; Direct to Consumers

What is the sales channel?

A sales channel is defined as the way in which a business-to-business (B2B) sales organization goes to market, either through direct or indirect routes, to sell its product or solutions to end customers.

Since we are in a digital era now, consumers can be able to make purchases for products through online sales platforms and the goods will be delivered to the person's address.

Thus, the sales channel opened to manufacturers because of digital tools is called Direct to Consumers.

Read more about Sales Channel at; https://brainly.com/question/24701223

Explain what the notation lim f(x)=-infinity means

Answers

Answer:

You are finding the horizontal asyemtopes/end behavior of the graph.

Explanation:

You are finding the horizontal asyemtopes/end behavior of the graph.

A 100.0 ml sample of 0.18 m hclo4 is titrated with 0.27 m lioh. determine the ph of the solution at the equivalence point.

Answers

Answer: 7

Explanation:

The volume of 0.18 M HClO4 is 100.0 mL.

Calculate the number of moles of 0.18 M HClO4 and 0.27 M LiOH as shown below:

[tex]$$Number of moles $=$ Concentration $\times$ Volume$$\begin{aligned}\text { Number of moles of } \mathrm{HClO}_{4} &=100.0 \mathrm{~mL} \times\left(\frac{1 \mathrm{~L}}{1000 \mathrm{~mL}}\right) \times\left(\frac{0.18 \mathrm{~mol}}{\mathrm{~L}}\right) \\&=0.018 \mathrm{~mol} \\\text { Number of moles of } \mathrm{HClO}_{4} &=66.67 \mathrm{~mL} \times\left(\frac{1 \mathrm{~L}}{1000 \mathrm{~mL}}\right) \times\left(\frac{0.27 \mathrm{~mol}}{\mathrm{~L}}\right) \\&=0.018 \mathrm{~mol}\end{aligned}$$[/tex]

[tex]$$Moles of both acid aand base are equal.\\ $\mathrm{HClO}_{4}$ is a strong acid and $\mathrm{LiOH}$ is a strong base.[/tex]

At the equivalence point, the number of moles of the acid completely reacted with all the moles of the added base. Thus, the solution becomes neutral in nature. The pH of a neutral solution is 7. Therefore, the pH of the solution at the equivalence point is 7.

An employee at a construction company earns $33,000 for the first year of employment. employees at the company receive raises of $2400 each year. write a rule for the salary of the employee each year. then complete the table for the first 8 terms of the sequence.

Answers

The rule for the salary of the employee each year is $33,000 + $2,400n

Where n represents the number of years.

The completed table is:

n  dn

1      $35,400

2     $37800

3     $40,200

4      $42,600

5      $45,000

6        $47,400

7        $49800

8       $52,200

What is the salary rule?

The equation that can be used to determine the employee's salary in a given year is:

Total salary = initial salary + (rate of increase in salary x number of years)

$33,000 + $2,400n

Total salary in year 1 =  $33,000 + $2,400(1) = $35,400

Total salary in year 2 =  $33,000 + $2,400(2) = $37,800

Total salary in year 8 =  $33,000 + $2,400(8) = $52,200

To learn more about mathematical equations, please check: https://brainly.com/question/26427570

How have scientific advancements helped reduce the impact of hazardous events on society?

Answers

Explanation:

Scientific advancements have led to the ability to detect some hazardous events before they occur, allowing society to plan for them, mitigating their damage.

A consumer charges a $46.92 purchase on a credit card. the card has a daily interest rate of 0.039%. if the consumer pays off the balance at the end of 30 days, how much in interest will be paid for the purchase? a. $0.06 b. $0.18 c. $0.55 d. $5.49 please select the best answer from the choices provided. a b c d

Answers

The interest that will be paid for a period of 30 days at an interest rate of 0.039% will $0.55

Interest Rate Computation

Given Data

Charge on purchase = $46.92Daily interest Rate = 0.039%Number of Days = 30

Let us find the daily amount in Interest

= 0.039/100*46.96

= 0.0182988

Hence the daily interest made will 0.018

Also, for 30 days the accrued amount will be

= 0.18*30

= 0.548964

= $0.55

Learn more about interest rate calcultaion here:

https://brainly.com/question/11514232

Answer:

C. $0.55

i got 100%

In this excerpt, president reagan is referring to what would become known as-

Answers

Using the excerpt, President Reagan is referring to what would become known as the Iran-Contra affair.

What describes the Iran Contra affair?

This is known to be a kind of secret arms deal that exist between US na d their known enemy.

The Iran-Contra Affair was known to be a type of secret operation where the US government were said to have in secret, Illegally sent weapons to a their known enemy and they were also said to have sent financial aid to a rebel force.

Learn more about  President Reagan from

https://brainly.com/question/14130764

Which best summarizes the central idea in the excerpt? tan is troubled by the way her mother uses the english language. tan is uncomfortable using negative terms to describe her mother’s english. tan has difficulty trying to explain what she means when she writes in english. tan has found that the english language is lacking in descriptive word choices.

Answers

The statement which best summarizes the central idea in the excerpt is "Tan is uncomfortable using negative terms to describe her mother’s english".

The excerpt from "Mother Tongue" by Amy Tan.

Lately, I’ve been giving more thought to the kind of English my mother speaks. Like others, I have described it to people as “broken” or “fractured” English. But I wince when I say that. It has always bothered me that I can think of no other way to describe it other than “broken,” as if it were damaged and needed to be fixed, as if it lacked a certain wholeness and soundness.

Therefore, it can be seen that Tan feels uncomfortable using negative terms such as broken and fractured to describe her mother's English.

Learn more about central idea:

https://brainly.com/question/2684713

Answer:

B

Explanation:

Edge 2022

Why did they agree to not tell the italians where they came from?

Answers

Answer:

The Italians would think they were demons

Explanation:

"The superstitious character of the Italians would have

been at work, and we should have been called demons vomited

from the infernal regions."

Choose the word that can not complete the sentence. está _____ .

Answers

Answer:

esta bien

Explanation:

is that okay

esta bien

A resident right is something that a person is always entitled to

Answers

Answer: Heyo Kenji Here! Here's your answer ^^ - Resident Rights include: dignity, respect, individual choice, privacy, confidentiality, active care participation, and filling complaints/grievances. Select the response that is not considered to be a Resident's right to choose. A) Resident can choose to participate in activities inside and outside the facility.

Explanation: Hope This Helps!

have a nice day!-Kenji

What did germany think would motivate mexico to declare war on the united states?

Answers

Answer: Regaining territories in the American South West.

In a campaign speech, a candidate criticizes an opponent for voting in favor of a controversial bill that both of them actually supported. in what way is this tactic most likely deceptive towards voters? a) it dupes voters by using greatly inflated claims b) it distracts voters by appealing to their emotions. c) it misleads voters by omitting critical information. d) it confuses voters by accusing the opponent falsely.

Answers

Answer:  It misleads voters by omitting critical information

Explanation:

Trust me

A population of 250 birds inhabit the canopy of a tropical rain forest that has a carrying capacity of 400 birds. what is the maximum population growth rate (rmax) if the population grows to 283 in one year?

Answers

The maximum population growth rate (rmax) if the population grows to 283 in one year is = 13.2%

What is maximum population growth rate?

The growth rate of a given population is the intrinsic rate of increase of that population.

To calculate the growth rate of a population the following is done:

The past value is subtracted from the present value. That is, 283- 250 = 33

Divide the number gotten from the past value. That is, 33/250 = 0.132

Multiply your answer by 100 to express it as the percentage rate. That is, 0.132 × 100 = 13.2%

Therefore, the maximum population growth rate (rmax) if the population grows to 283 in one year is = 13.2%

Learn more about growth rate here:

https://brainly.com/question/25849702

Which best describes the formation of metamorphic rock?

Answers

Rock—> high heat—>high pressure—>mineral fluids booom

How many identification code are possible by using 3 letters if no letter may be repeated?

Answers

Answer:

8 sorry if im wrong

Explanation:

Answer:

If there are 4 letters so the Answer will be 358,800 Maybe if you Calaculate for 3 it would be 15600.\

Hope this helps you!!

Please Mark me Brainleast!!!!!!!

A female mosquito can produce 50-500 offspring in a two-week period of time. this rapid reproduction can also result in fast evolution for this small insect species. for example, pesticide resistance occurs rapidly in insects, including mosquitoes. insecticides that were once effective at eradicating mosquito populations are no longer effective. which component of natural selection is likely playing a role in this rapid evolution for mosquitos?

Answers

They produce more offspring than can survive in their lifetime. Offspring are varied genetically, with differential survival and reproduction.

What are mosquitoes?

Mosquitoes are ectoparasites, that feed on the blood of different animals. They do that by sucking blood from the skin of animals and leave red spots that are itchy.

Now, mosquitoes lay their eggs in water and live in dirty, moist, dark places. They are also responsible to cause malaria in humans.

Thus, we can say that produce more offspring than can survive in their lifetime. Offspring are varied genetically, with differential survival and reproduction.

Read more about mosquitoes at; https://brainly.com/question/12296806

Select the correct answer. what happens to the molecules within a gas when the gas condenses? a. they gain energy. b. they lose energy. c. they drift apart. d. they move faster.

Answers

Answer:

Answer is B

Explanation:

What traits does lady bracknell show in this excerpt? check all that apply. she is determined to get her way. she is involved in her daughter’s life. she is reluctant to take action. she is always forthright and honest. she is willing to withhold certain truths

Answers

The traits that lady Bracknell shows in the excerpt may include she is determined to get her way, being involved in her daughter’s life, and being willing to withhold certain truths. Thus, the correct options are A, B, and E.

Lady Bracknell possesses several traits in her personality. These characteristics may be significantly expressed in the stories in specific instances. For example, she gets involved in her daughter's life because she considers it her responsibility to search for a suitable partner for her.

Apart from this, she is able to withhold certain truths as she has specifically decided not to disclose the fate of her daughter to her husband.

To learn more about Lady Bracknell, refer to the link:

https://brainly.com/question/9585526

#SPJ7

Your question seems incomplete. The most probable complete question is as follows:

Read the excerpt from Act III of The Importance of Being Earnest.

Lady Bracknell. Come here. Sit down. Sit down immediately. The hesitation of any kind is a sign of mental decay in the young, of physical weakness in the old. [Turns to Jack.] Apprised, sir, of my daughter’s sudden flight by her trusty maid, whose confidence I purchased by means of a small coin, I followed her at once by a luggage train. Her unhappy father is, I am glad to say, under the impression that she is attending a more than usually lengthy lecture by the University Extension Scheme on the Influence of a permanent income on Thought. I do not propose to undeceive him. Indeed I have never undeceived him on any question. I would consider it wrong. But of course, you will clearly understand that all communication between yourself and my daughter must cease immediately from this moment. On this point, as indeed on all points, I am firm.

What traits does Lady Bracknell show in this excerpt? Check all that apply.

She is determined to get her way.She is involved in her daughter’s life.She is reluctant to take action.She is always forthright and honest.She is willing to withhold certain truths.

How tall is steve in feet and inches according to the game’s scale?

Answers

Steve is a rather impressive 6 foot, 2 inches. That works out at 1.875m, which makes him fairly tall.

I was called into service to lead the union troops because i can outkill or outlast my enemy. i am a father of the concept of modern war. who am i?

Answers

Answer:

a marine hoo-rah

Explanation:

me is smart

The first term of a geometric sequence is 8 and the fourth term is 216. what is the sum of the first 12 terms of the corresponding series?

Answers

The sum of the 12 terms of a geometric sequence with first term as 8 and fourth term as 216 is 2125760

Geometric sequence

The formula to solve geoemtric sequence is as follows:

aₙ = arⁿ⁻¹

where

a = first termn = number of termsr = common ratio

Therefore,

ar³ = 216

a = 8

Hence,

8r³ = 216

r³ = 216 / 8

r³ = 27

r = ∛27

r = 3

Therefore,

sum of 12 term = a(rⁿ - 1) / r - 1

S₁₂ = 8(3¹² - 1) / 3 - 1

S₁₂ = 8(531440)  / 2

S₁₂ = 4251520 / 2

S₁₂ = 2125760

learn more on geometric sequence here: https://brainly.com/question/23047782

#SPJ1

Which form(s) of energy can be transmitted through a vacuum?

Answers

Answer:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

Use the standard normal form table to find p(z ≤ 0.82). p(z ≤ 0.82) ≈

Answers

Using the standard normal form table to find the probability is; p(z ≤ 0.82) ≈ 0.7939

How to Interprete Standard Tables?

When talking about z-score in standard normal distribution, there could be greater than or equal to, less than or equal to, greater than, less than.

Now, in this case, we are dealing with the probability of p(z ≤ 0.82). This gives;

p(z ≤ 0.82) = 1 - 0.2061

p(z ≤ 0.82) = 0.7939

Thus, from normal form table,  p(z ≤ 0.82) ≈ 0.7939

Read more about Standard tables at; https://brainly.com/question/4079902

Answer:

79%

Explanation:

Use the model here to describe the transfer of matter and flow of energy

Answers

Answer:

In ecosystems, matter and energy are transferred from one form to another. Matter refers to all of the living and nonliving things in that environment. Nutrients and living matter are passed from producers to consumers, then broken down by decomposers. Decomposers break down dead plant and animal matter.

Which situation would cause the price of a product to fall the most

Answers

Answer:

which the supply is higher than the demand or a decrease in production materials or a company at the brink of bankruptcy

If jordan makes only the minimum monthly payments in march, april, and may, what will his balance be after he makes the minimum payment for may? (assume that interest is compounded before the monthly payment is made, and that the monthly payment is applied at the end of the month. round all dollar values to the nearest cent.) a. $1,094.10 b. $988.97 c. $967.60 d. $1,070.23

Answers

The balance of Jordan, after he makes the minimum payment for may, when he makes only the minimum monthly payments in March, April, and May, is $988.97.

What is monthly payment?

Monthly payment is the payment which has to paid against the loan amount or the borrowed money calculated with interest rate.

The monthly payment is the amount which is required to pay each month to pay off the borrowed principal amount.

Jordan’s credit card has an APR of 10.59%, compounded monthly. He is required to make a minimum payment of 3.96% of his current balance every month.

At the beginning of March, Jordan had a balance of $628.16 on his credit card. The following table shows his credit card purchases over the next few months.

Month     Cost ($)   Start      $628.16    March     50.81 March    48.04 April       77.36 April       32.40 April       49.20 May        25.79 May        79.39 May        79.08

The total amount at the end of March is 727.01. With interest rate of 3.96% it will become, $755.8. Now, this is initial balance for April.

The total amount at the end of April is 914.76. With interest rate of 3.96% it will become, $950.98.

The total amount at the end of May is 1135.24 With interest rate of 3.96% it will become, $1180.19. For may, the minimum payment he paid.

Jordan’s credit card has an APR of 10.59%, compounded monthly. Thus, after the compounded interest with APR 10.59%, the amount will be $988.97, if he pay minimum payment for may.

The balance of Jordan, after he makes the minimum payment for may, when he makes only the minimum monthly payments in March, April, and May, is $988.97.

Learn more about the monthly payment here;

https://brainly.com/question/2151013

#SPJ1

Answer:B

Explanation: right on eng

Determine whether each of the following is a characteristic of a protist, fungus, or both.

Answers

The characteristic is that

Mycelium-FungiHeterotrophic-BothPseudopods-Protists

What does Fungi do?

The others are:

Contain cell walls with chitin- Fungi Fruiting body- FungiFlagellum- Protists

Fungi is known to be an organisms that are vital for decomposing and recycling. Note that they have a kind of symbiotic relationships with other organisms so as to be able to exchange nutrients.

Learn more about fungus from

https://brainly.com/question/8678170

Question 1 with 1 blank el carro tuyo es azul. (yo) 1 of 1 es rojo. question 2 with 1 blank el televisor nuestro es pequeño. (ustedes) 1 of 1 es grande. question 3 with 1 blank la impresora mía es rápida. (ella) 1 of 1 es lenta. question 4 with 1 blank la computadora suya es vieja. (tú) 1 of 1 es nueva. question 5 with 1 blank los teléfonos suyos son caros. (nosotros) 1 of 1 son baratos.

Answers

According to the context and following the model, using the possessive form the sentences are written as follows:

El carro tuyo es azul/ El carro mío es rojo. El televisor nuestro es pequeño/ El televisor de ustedes es grande.La impresora mía es rápida/ La impresora de ella es lenta.La computadora suya es vieja/ La computadora tuya es nueva. Los teléfonos suyos son caros/ Los teléfonos nuestros son baratos.

Translation:

Your car is blue/My car is red.Our TV is small / Your TV is big.My printer is fast/ Her printer is slow.His computer is old/ Your computer is new.Their phones are expensive/ Our phones are cheap.

What is the possessive form?

It is the one that expresses possession or belonging and there are two types, on the one hand the possessive determiners that are placed before the noun and on the other hand the possessive pronouns that are placed after the noun.

Its main function is morphematic: they express the category of person and number, modifying a noun and imprinting a sense of belonging to something or someone.

Therefore, we can conclude that possessives are related to personal pronouns, since they indicate which person owns something or someone.

Learn more about possessive form here: https://brainly.com/question/21921875

An enzyme speeds up a chemical reaction in the cell but can only be used once.

Answers

Answer:

An enzyme speeds up a chemical reaction in the cell, but it can only be used once.

Explanation:

Other Questions
PLEASE HELP ASAPWhich is NOT true of the construction of an angle bisector?A)You start with any angleB) When you're finished, you have a line that bisects your segmentC) You must draw an arc using the vertex as the center D) When you're finished, you have a ray that bisects your angle RESEARCH PROJECT: Ask people, or yourself, what motivates you to learn? Write in 5 - 10 sentences or more. Rare or weird answers are acceptable! HWrite the decimal as a fraction.0.5 = 11[?]Simplify your answer completely. Why would high demand for beef around the world result in growth for the overall economy of Texas?Meat would be cheaper in Texas than anywhere else.High beef demand lowers the prices for other food products.The cattle industry is one of the biggest industries in the state.High beef demand makes shipping cattle to stockyards cheaper. What should i draw next ?\EYEPERSONa logo? Prospect Creek, Alaska, holds the U.S. record for the coldest temperature, -62.1C. What is the temperature in Fahrenheit I NEED HELP FAST PLEASE HELP ME i know its not D why are wetlands important The most common ages of children that use the library are i need help with this What value of c makes x2 6x c a perfect square trinomial? Look at the following solution of the equation x raised to the power of 6=64.x raised to the power of 6=64so, x raised to the power of 3=8so, x=2 There is an error in this solution. Write a corrected version. Vegetarian diets are better for the planetbetter use of land and energy Holding all else constant, an increase in the market demand for a product in a competitive market would cause Group of answer choices the marginal revenue (MR) curve of the firms to increase. A decrease in profits for a firm. A decrease in the price a firm could charge for the product. The average total cost (ATC) curve of the firms to increase. The marginal cost (MC) curve of the firms to increase Which of the following would be true about rivers and streams Hypostress is a type of stress that involves the "fight or flight" reaction. I NEED AN ANSWER I'VE ASKED THIS TWO TIMES ALREADY PLEASE.What is the area of this trapezoid?Enter your answer in the box. ftTrapezoid with parallel sides labeled 11 feet and 35 feet. Dashed perpendicular segment between them is labeled 14 feet. In 1914, who controlled the areas shaded in red on the map?NetherlandsBelgiumGreat BritainFrance Does 2/3x+2/3+1/5=2/3x have a solution? Parathyroid hormone increases phosphate excretion by the proximal convoluted tubule as well as promotes synthesis of calcitriol.a) trueb) false