What mass of na2so4 is needed to prepare 350. ml of a solution having a sodium ion concentration of 0.125 m?

Answers

Answer 1

Answer:

6.2125 g

Explanation:

6.2125 g of Na₂SO₄ is needed to prepare 350 mL of a solution having a sodium ion concentration of  0.125 M.

Answer 2

Answer and Explanation:

6.2125 g of Na₂SO₄ is needed to prepare 350 mL of a solution.

You have to know that molarity is a measure of the concentration of a solute that is defined as the number of moles of solute that are dissolved in a certain volume.

number of moles of solute= 0.125 M×0.350 L=0.04375

142 g/mole is the molar mass of Na₂SO that's the mass of one mole of the compound and the amount of mass that contains 0.04375 moles. Mass= 0.04375 moles× 142 g/mole therefor mass= 6.2125 g.

So, 6.2125 g of Na₂SO₄ is needed to prepare 350 mL of a solution having a sodium ion of  0.125 M

Please let me know if I did anything wrong. I'm pretty sure I'm right but I cant always be sure.


Related Questions

What motif common to folktales is best reflected in this passage? a moral special powers trickery a journey or quest

Answers

The folktales have emphasis with the common motif of a moral. Thus, option A is correct.

What are folktales?

Folktales are the stories about the events, facts, myths and other topic that are recited loudly rather than being written in the books.

The folktales are the oral tradition and are accustomed to the emphasis on the culture and the moral. Thus, option A is correct.

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Answer:

It’s. A

Explanation:

Ss

S

S

S

S

why is it necessary for the dna to replicate prior to cell division?

Answers

Answer:

because it ensures that each daughter cell gets a copy of the genome, and therefore, successful inheritance of genetic traits.

Explanation:

I hope this helps you! Please feel free to give feedback :)

At the beginning of his speech, on pages 1-3, henry discredits those who do not share his opinion by implying that they are

Answers

Those who didn't share henry's opinion and whom he discredited are referred to as; Acting Like Cowards

What is the meaning of the speech?

This is taken from a speech delivered by Patrick Henry to the virg-inia convention addressing it's delegates.

When Patrick Henry began his speech to the Virg-inia Convention, he first praised the men who spoke before him. Thereafter, he considered them to be patriots and calls them "worthy gentlemen."

After stating that he does not want to seem disrespectful toward those with whom he disagreed, he then proceeded to make statements discrediting those who didn't share his opinions and it implied that they were acting like cowards.

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The table below describes an international organization:


?
founded in 1995
meets every two years
opposed to member nations heavily taxing imports


Which title completes the table?

Peace Corps
The World Trade Organization
The North Atlantic Treaty Organization
The Red Cross

Answers

Answer:

The answer is The World Trade Organization

Explanation:

I took the quiz

Answer:

B) The World Trade Organization

A wave has a wavelength of 15m and a frequency of 10hz. what is the speed of this wave?

Answers

Answer:

150m/s

Explanation:

velocity = wavelength * frequency

                 15 * 10

                  =150m/s

How does henry respond to the claim that the country

Answers

Answer:

Explanation:

What is Henry's answer to the objection that the colonists are not ready to fight against the British? Henry says that there are enough people with the motivation to achieve independence, which he says will easily defeat any other country. He also says that God is on their side and will help them through the battle.

Where does tom believe gatsby’s fortune came from? what evidence from earlier chapters might corroborate the belief that gatsby’s business dealings are not totally on the level?

Answers

The fortune of Gatsby was believed by Tom as the result of his alcohol selling that was stated by Daisy as a chain of drug store.

Who is the author of The Great Gatsby?

The Great Gatsby is the novel written by F. Scott Fitzgerald. It has the theme delivered that the dreams of an individual are unattainable, focusing with the Americans.

In the story, the fortune and the money with Gatsby was considered to came from the practice of bootlegging or selling alcohol. The evidence from the earlier chapter come with Daisy stating Gatsby to have a chain of the drug store that enables him to get rich.

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Imagine a marked increase in dissolved carbon dioxide in warm shallow waters, where coral reefs exist. how could the increase in dissolved carbon dioxide most likely affect the diversity of this ecosystem?

Answers

In the ecosystems they control many things

believes that sabotage is a rational response to the apartheid system.

Answers

According to research, Nelson Mandela believes that sabotage is a rational response to the apartheid system.

Who was Nelson Mandela?

He was a South African-born lawyer and politician who was imprisoned for 27 years for his opposition to the policy of racial segregation.

He believes that sabotage is the racial response to the apartheid system, a system of segregation that separated whites and blacks in his country.

He is elected as president of his country, in the period from 1994 to 1999, and is recognized for abolishing apartheid, marking the end of racial discrimination.

Therefore, we can conclude that according to research, Nelson Mandela believes that sabotage is a rational response to the apartheid system.

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Answer:

Nelson Mandela

Explanation:

Edge 2022

what accounts does lillie t. lane have open at this time?

Answers

The type of accounts that Lillie T. Lane have open at this time are one (1) mortgage and one (1) credit card.

What is a credit card?

A credit card is a small rectangular-shaped plastic card issued by a financial institution (bank) to its customers, so as to avail them an opportunity to purchase goods and services on credit, especially based on the agreement that this amount of money taken would be paid back at a stipulated time and with an agreed upon interest rate.

Similarly, a mortgage is a type of loan that is given to an individual by a financial institution (bank), which is to be paid back in installments.

In this scenario, the type of accounts that Lillie T. Lane opened at this time are one (1) mortgage and one (1) credit card.

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The diploid number of chromosomes in a human skin cell is 46. how many chromosomes are in a human egg cell?

Answers

Normal human body cells are diploid and the basic chromosomes number of human cell is (n) 23. Thus, a normal human cell has (2n) 46 chromosomes out of which 44 are autosomes and 2 are gender chromosomes XY.

What are chromosomes?

Chromosomes are threadlike structure of nucleic acids and protein present in the nucleus of living cells, carry genetic information in the form of genes.

The "X" or "Y" gene which determines whether new born will be a boy or a girl is an example of a chromosome. the below diagram representing the chromosome.

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Describe three changes in man's relationship with god after the fall.

Answers

The three changes in man's relationship with god after the fall are:

A. They lost their relationship with God.

B. They began to sin against one another.

C. They began to think of themselves better than others, and believed that their way was right; not Gods.

What was the fall of man?

The fall is basically a Christian term for the fall of man and woman from the state of obedient and innocent to the people who do sin.

The fall impacted the relationship between man and himself, and man and god.

Thus, the correct options are A, B, and C.

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What active listening skills did the negative use while the affirmative presented? check all that apply.

Answers

An active listening skills which the negative used while the affirmative presented is looking at the person who is speaking.

What is an active listening skill?

An active listening skill can be defined as the ability of an individual (listener) to effectively and efficiently listen and observe both the verbal and non-verbal messages (information) which is being communicated by a speaker.

In this context, the active listening skills which the negative used while the affirmative presented are:

Looking at the person who is speaking.Paying close attention to the argument.Taking notes on what the other person is saying.

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Which one of the following is not a goal of this course

Answers

A feature which is not a goal of this course is database performance tuning.

What is a database?

A database refers to an organized and structured collection of factual data that are stored on a computer system as a backup and they're usually accessed electronically.

The goals of this course include teaching students the following:

To describe the purpose of a relational database.To describe key business requirements of a database.To use data modeling to develop a database.

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a line passes through the point (4, –2) and has a slope of . what is the value of a if the point (–4, a) is also on the line? –6 –5 5 6

Answers

Answer:

a=6

Explanation:

What is the horizontal asymptote of j (x) = startfraction 14 x cubed + 45 over 2 x cubed + x + 9 endfraction y = 1 y = 5 y = 7 y = 12

Answers

Answer:

The Answer is: y=7

Explanation:

What are the first five terms, a1, a2, a3, a4, a5, of the sequence defined by a subscript n baseline = startfraction n (n squared + 1) over n + 2 endfraction, and how can the sequence be described? 1, five-halves, startfraction 21 over 5 endfraction, 6, startfraction 55 over 7 endfraction; diverges two-thirds, five-halves, 6, startfraction 34 over 3 endfraction, startfraction 130 over 7 endfraction; diverges 1, five-halves, startfraction 21 over 5 endfraction, 6, startfraction 55 over 7 endfraction; converges to a limit of 1 two-thirds, five-halves, 6, startfraction 34 over 3 endfraction, startfraction 130 over 7 endfraction; converges to a limit of 1

Answers

Answer:

B

Explanation:

Answer:

b

Explanation:

If sin(x) = negative one-third and cos(x) > 0, what is tan(2x)? negative startfraction 4 startroot 2 endroot over 7 endfraction negative startfraction 4 startroot 2 endroot over 9 endfraction startfraction 4 startroot 2 endroot over 9 endfraction startfraction 4 startroot 2 endroot over 7 endfraction

Answers

Answer:

A on edge

Explanation:

Negative StartFraction 4 StartRoot 2 EndRoot Over 7 EndFraction

Answer:

The answer is letter A

Explanation:

a result of papa doc duvalier's rule in haiti was haitians fleeing the island an expansion of civil rights a strengthening of ties with the united states the signing of a peace treaty with cuba

Answers

A result of papa doc Duvalier's rule in Haiti was Haitians fleeing the island.

What was  "Papa Doc" Duvalier rule about?

Physician Francois popularly known as  "Papa Doc" Duvalier was said to have came into power on  On September 25, 1956.

He came into power via military coup d'état and was then made the president.  He was known to be strongly against and attack his opponents and was even said to have driven a lot of them into exile.

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what critique of u.s. economic policy is this protestor's sign making?

Answers

An economic policy is the current development and state of the nation's economy. Developing and poor nations are harmed by being an exporter to wealthier nations.

What is World Trade Organization?

World Trade Organization (WTO) is an intergovernmental organization that facilitates and regulates international trade. The protestors are demonstrating against WTO who is alleged to not help the underdeveloped poor nations.

The raw materials produced in underdeveloped countries are taken advantage of by the wealthier countries. The industrial setup of these countries is not developed and hence results in poverty.

Therefore, the protestors are protesting against WTO for not supporting them in getting developed.

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which elements were included in the negative’s rebuttal? check all that apply.

Answers

Affirmative counterclaim, evidence, use of logos, and support for the original claim are the elements that should be included in the negative rebuttal.

What is a negative rebuttal?

An argumentative editorial includes statements with claims and counterclaims. A negative rebuttal is the contradiction and refutation of the statements made in the argument.

It rejects the given evidence and can be claimed by the use of the evidence. In a negative rebuttal, the counterclaim must be acknowledged with the help of logos and the claim for the original must be supported.

Therefore, the evidence and logos support the negative’s rebuttal.

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Answer:

1. an acknowledgment of the affirmative’s counterclaim

3. evidence to support the negative’s rebuttal

5. the use of logos to support the rebuttal

6. support for the negative’s original claim

maddie is renting an art studio and sees in the rental agreement that each year they will raise the rent by 15%. the rent when she first signs the agreement is $450. what function best models the amount of rent she will have to pay in each future year?

Answers

The function which best models the amount of rent she will have to pay in each future year is y = 450(1.15)^x

How to write a function

First year rent = $450Percentage increase per year = 15%

let

y = total rent paid each subsequent year

x = number of years

The function:

y = 450(1.15)^x

If x = third year

y = 450(1.15)^x

= 450(1.15)^3

= 450(1.520875)

= $684.39375

Given options:

A) y = 0.15x + 450

B) y- 450x + 0.15

C) y = 450(1.15)^x

D) y = 450(0.15)^x

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What is the perimeter of rhombus wxyz? units 12 units units 20 units

Answers

Answer: 20 untils

Explanation:

A set of data with a mean of 45 and a standard deviation of 8.3 is normally distributed. find each value, given its distance from the mean.

Answers

The value of each score from the z-score can be calculated using x = 45 + 8.3z

How to determine the distance from the mean?

The given parameters are:

Mean = 45Standard deviation = 8.3

The z-score is calculated using:

[tex]z = \frac{x - \mu}{\sigma}[/tex]

This gives

[tex]z = \frac{x - 45}{8.3}[/tex]

Multiply both sides by 8.3

x - 45 = 8.3z

Add 45 to both sides

x = 45 + 8.3z

Hence, the value of each score from the z-score can be calculated using x = 45 + 8.3z

Note that the question has missing parameters, so I provided a general solution

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does Anyone need help with any assignments

Answers

Answer:

No

Explanation:

nevermind i found an answer to the question i asked. i hope you have a good day/night! :)

a kettle heats 1.75 kg of water. the specific latent heat of vaporisation of water is 3.34 x 106 j/kg. how much energy would be needed to boil off the water?

Answers

Answer:  The energy needed is 5845000J

read this excerpt from john steinbeck's "symptoms," which describes soldiers' horrific experiences in the war. how does the author increase the emotional power of his essay?

Answers

The excerpt from the symptoms give the emotional power to the essay, with the use of the physical effects to add the reality.

What is the theme of the John Steinbeck's, "Symptom"?

The symptoms by John Steinbeck's deal with the after effect faced by the soldiers after the period of war. He made the use of World War II as the inspiration of his work.

The excerpt from symptoms describe the effects faced by the soldiers, and with the use of the words of past tense describing the physical effect such as salty taste, insensitive skin that add reality for the readers.

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Which sentence from the passage contains the central idea?it took a long time for people to realize where this disease came from.for hundreds of years, they thought it was due to dirty air, especially near swamps.in fact, it is caused by the bite of an infected mosquito.not all mosquitoes carry this disease, and some mosquitoes actually get it from biting an infected person.

Answers

Answer:

c. In fact, it is caused by the bite of an infected mosquito.

Explanation:

Fever 1973 by Laurie Anderson is based on the real outbreak of yellow fever. It is caused by the mosquito's bite displays the central idea of the story. Thus, option c is correct.

What is yellow fever?

Yellow fever is a viral infection that spreads because of a mosquito bite and results in fever, headache, body ache, and sometimes leads to organ failure and death.

Not all type of mosquito causes yellow fever but only the Aedes aegypti mosquito that breeds in clean water causes and transmits the virus from the infected to the normal person through the bite.

Therefore, option c. yellow fever is caused by the bite of a mosquito.

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Many states had problems with the terms of the articles of confederation and were slow to ratify the document because:

Answers

Explanation:

laala it is a good question but I don't won't and we stand that's all

which sentence from the story best illustrates how jeannette feels about her family’s choice of vacation? a) i’ve perused this bevy of travel pamphlets and i have no inkling of where i want to travel. b) perhaps we should try to climb the mountain so that jeannette can tackle her fear. c) the thought of scaling a gigantic mountain is both scary and exhilarating. d) but, what if i lost my composure and chose not to climb with you?

Answers

Answer:

c

Explanation:

The thought of scaling a gigantic mountain is both scary and exhilarating.

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