what is the molarity of a solution prepared by dissolving 54.3 g of ca(no3)2 to form 355 ml of the solution?

Answers

Answer 1

Answer:

The molarity of a solution prepared by dissolving 54.3 g of Calcium nitrate  into 355 mL of water is 0.9881M

Molarity of solution is the ratio of the number of moles of the substance to the volume.

n is the number of moles of the compound

Mass of calcium nitrate = 54.3g

Molar mass of calcium nitrate = Ca(NO₃)₂ = 164.088 g/mol

Get the required molarity;

Hence the molarity of a solution prepared by dissolving 54.3 g of Calcium nitrate  into 355 mL of water is 0.9881M

Explanation:

:)


Related Questions

Rocky point brewery (rpb) filed an initial public offering in january 20x3. Rpb engaged olsen & alain, cpas (o&a) in 20x0 to keep the books and prepare monthly and annual financial statements (while the company was privately held), and terminated those services in december 20x2. Under sec and pcaob rules, could rpb engage o&a to be its auditors now that it is a public company?.

Answers

Based on the information given, the correct option is D. No, because the prohibited non-audit services were performed during the period covered by the financial statements.

From the complete question, a public company simply means a company where the shareholders have a claim to the assets and profits of the company.

It should be noted that under SEC and PCAOB rules, RPB cannot engage O&A to be its auditors now that it is a public company. This is because the prohibited non-audit services were performed during the period covered by the financial statements.

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Which of the following describes ladue's feelings about his actions?.

Answers

Answer: He had no issue admitting his plans to the police, which suggested that he didn't feel remorse.

Explanation:

He had no issue admitting his plans to the police, which suggested that he didn't feel remorse, describing Ladue's feelings about his action.

What is Feeling?

The manner in which a person feels an emotion. The sentiment is something you experience privately in your own head that other people can infer from your actions.

Being able to comprehend emotions is a crucial aspect of the human experience. Why? because our perception of our entire existence is affected by our sentiments. We may understand what is occurring on the inside by using our feelings. They serve as the body's means of expressing how we are interacting with the outside world.

Many of us have learned to hide and deny our innate emotions since we were young. We've frequently been taught that the emotions we feel are unpleasant or make us bad.

Hence, He had no issue admitting his plans to the police, which suggested that he didn't feel remorse, describing Ladue's feelings about his action.

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Alice isn't sure which labor rate to use for employees in her project budget. Which employee labor rate should you tell her to use?.

Answers

Since she does not know the labor rate to use for employees in her project budget, then, i will tell her to use the employee's labor rate called Burdened rates.

What is Burdened rates?

A burdened rates means the total cost incurred for hiring and maintaining the employee beyond their direct compensation in wages

The burdened rates in essence, helps to capture the labor costs on your project

In conclusion, i will tell her to use the employee's labor rate called Burdened rates.

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Find the solution to the system of equations. You can use the interactive graph below to find the solution. \begin{cases} -3x-9y=18 \\\\ 4x+3y=12 \end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ −3x−9y=18 4x+3y=12 ​.

Answers

The solution to the system of equations is x = 30 and y = -36.

The two equations are known as simultaneous equations. The elimination method would be used to determine to find the solutions.

−3x−9y=18 equation 1

4x+3y=12 equation 2

In order to determine the value of x, take the following steps;

Multiply equation 2 by 3

12x + 9y = 36 equation 2

Add  equation 1 and equation 2

x = 30

Substitute for x in equation 2

4(30) + 3y = 12

120 + 3y = 12

120 - 12 = -3y

108 = -3y

y = 108 / -3 = -36

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Answer:

x=6

y=-4

Explanation:

got it on khan <3

Which topic is suitable for the size and scope of a five paragraph essay.

Answers

Answer:

essay on economic availability of the country

how does douglass appeal to the audience’s sense of logic in the excerpt? by using his own personal experiences to gain their trust by recounting emotional events to evoke sadness by explaining the reasoning behind his argument by describing how he plans to effect change in the us

Answers

Answer:

B

Explanation:

I got it right on test

Answer:

B. by recounting emotional events to evoke sadness

Explanation:

edge 2022

Which of the following is a possible long-term consequence of two organisms occupying the same niche? a. Local extinction b. Cooperation c. Interbreeding d. Coexistence please select the best answer from the choices provided a b c d.

Answers

Answer:

Niche refers to the role of the microorganism or a living thing in an ecosystem. When two organisms occupying the same niche, the possible long-term consequence isA. local extinction. This is because the relationship is competition which can outlast the other. Eventually, when the environment is changed, the organisms adapt too which erases the original attributes.

Explanation:

HOPE ITS HELP YOU

Religion comes from a _________________ word which means to bind things closely together.

Answers

Answer:

I think you are looking for the latin word ligare

Which statement best describes what energy transfer diagrams show?.

Answers

Answer:

Energy can change form, but the total amount of energy stays the same.

Which of the following statements regarding the moon and earth is correct.

Answers

Answer:

please the question is choice or what

Answer: Earth and the Moon are nearly the same age.

Explanation:

Which fall under the government and public administration cluster? check all that apply. The county government of orange county the municipal government of new york city the state government of arizona the federal government the federal government of detroit.

Answers

The following fall under the government and public administration cluster:

The county government of Orange County.The municipal government of New York City.The state government of Arizona.The federal government.

What is the government and public administration cluster?

The government and public administration cluster can be defined as a body of government or governmental organizations that is saddled with the responsibility of creating laws to protect its citizens. Thus, they serve private citizens.

What is a cluster?

Basically, a cluster is a term that is used to describe or qualify a collection of something such as governmental organizations.

Some examples of governmental organizations.

In this context, the governmental organizations that fall under the government and public administration cluster include the following:

The county government of Orange County.The municipal government of New York City.The state government of Arizona.The federal government.

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Answer:

The county government of Orange County.

The municipal government of New York City.

The state government of Arizona.

The federal government.

Explanation:

Which effect are children who receive unconditional love most likely to display?.

Answers

They would most likely display better stress resilience

Which of the following may be allowed in a food preparation area.

Answers

Among the listed items, the one that may be allowed in a food preparation area is;

Wedding Band.

Food preparation can be regarded as the process of preparing food which may involve cooking and other activities.

However,, the place of cooking should be hygienic and contaminating items should be do away with.

Therefore, Among the listed items, the one that may be allowed in a food preparation area  is;

Wedding Band.

CHECK THE COMPLETE QUESTION BELOW;

the one that may be allowed in a food preparation area: Smoking, Chewing Gum, Pets, Wearing a Wedding Band

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A bank that has not received payment on a loan can try to get its money back by:.

Answers

A bank that has not received payment on a loan from a borrower can try to get its money back by: hiring a collection agency to retrieve (seize) the money from the borrower.

A loan refers to an amount of money that is borrowed from a lender such as a financial institution (bank) and it is expected to be paid back at an agreed date with a predefined interest.

Generally, a financial institution (bank) lending out a sum of money to a borrower usually require that, the borrower provides a collateral which would be taken over in the event that the borrower defaults (fails) in the repayment of the loan.

Additionally, a collection agency can be hired by a bank to retrieve (seize) the money from the borrower when it hasn't received payment on a loan from a borrower.

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Answer: Hiring a collection agency to seize the money from the borrower

Explanation: correct on a p e x

In 1-2 sentences, explain if the ellipsis is used in the paragraph to indicate a pause or an omission. Use details to support your answer.

Answers

Three equally spaced points ( . . . ) often used  to represent an omission of words in a quotation are best known as ellipsis. They are also known as ellipsis dots, suspension points, or simply ellipsis.

Usage

"For example, I may be writing an article to be published in a journal and not include ellipsis. . ."

In summary, we utilise ellipsis to indicate that a list goes on beyond those items actually spelled out in the text.

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The four (4) types of speech according to delivery are also observed in.

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Answer: Manuscript, memorized, impromptu, and extemporaneous.

Which statements about the system are true? select two options. Y = y equals startfraction 1 over 3 endfraction x minus 4. X – 4 3y – x = –7.

Answers

Answer:

x-43y-x=-7

or, x-x-43y=-7

or, 43y=-7

or, y =-7-43

or, y=50

Answer:

The system consists of parallel lines.

Both lines have the same slope

Explanation:

Just took the test and got this one right.

A banana is 8 inches long how many 0. 4 inch slices.

Answers

an 8-inch banana can be cut into 20 pieces of 0.4 inch slices

8/0.4 = 20

Using the following quotation from the biography nolan bushnell.

Answers

Answer:

can you please post the picture for this thank you and

Describe a strange dream that you have seen recently.

Answers

When describing a strange dream that you had, there are several ways to go about it and this is one:

First introduce yourself into the story. Talk about how you fell asleep. Slowly guide the text into the dream. Talk about the different scenes in the dream and end it on the scene that felt the strangest to you. Explain why this was strange.

Writing an essay can be academic dishonesty so I will walk you through how to write one yourself.

Steps in the essay

Introducing yourself does not mean saying your name. You can simply use the pronoun, "I." Talk about what you were doing, for instance, walking home, or watching television.

Then talk about how you fell asleep - could be in your bed, on a seat on the bus, or even on a sitting room couch.

Then begin to talk about how the dream started. Talk about how the dream began and then progressed till you get to the strange events.

Talk about these strange events and end on the strangest; then explain why this scene was strange if it isn't apparent.

Conclusion

It is best to either use little detail or a lot of detail, avoid the middle ground.

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At a hospital, 56 percent of the babies born are not girls. Of the baby girls born, 12 percent are premature. What is the probability of a premature baby girl being born at this hospital? round to the nearest percent.

Answers

Answer: the answer is 5%

Explanation: got it right on edge

Fill in the blanks with the correct modals given in the brackets.

Answers

Answer:

where is your question

Explanation:

where i fill

Since customers who go to retail stores often know what they want or have a purpose to being at the store in the first place, sellers do not have to do much in the b2c selling environment.

Answers

Answer:

Explanation:Prospecting or qualifying

A 17 year old basketball player has collapsed on the court.

Answers

There are different reasons why players collapse in the court. It is therefore good that one knowns the right step to take.  The scene is safe and the correct order of skills for lay rescuer adult CPR is Call 911, check for a pulse, start CPR.

Note that in the court, a player may collapse and it is very important to do the right thing. You can only perform the CPR , when you known how to do it. If you don't have the basic training on how to do it, do not attempt to do it. watching of videos on how to do it may help.

When doing CPR, always make sure you have to keep your elbows locked, and make sure to know who needs to do that role in this process. Be quick with it and do not be afraid of breaking bones.

See full question below

A 17-year-old basketball player has collapsed on the court. The scene is safe. What is the correct order of skills for lay rescuer adult CPR?

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You have 41. 6 g of o2 gas in a container with twice the volume as one with co2 gas. The pressure and temperature of both containers are the same. Calculate the mass of carbon dioxide gas you have in the container.

Answers

Answer: The mass of carbon dioxide is 28.6 grams

Explanation:  Step 1: Data given

Mass of O2 = 41.6 grams

Volume of the O2 container = 2V

Volume of the CO2 container = V

Pressure and temperature are the same

Step 2: Ideal gas law

The ideal gas law = p*V=nRT

For O2: p*2V = n(O2)*R*T

For CO2: p*V = n(CO2)*R*T

n(O2)*R*T / P*2V = n(CO2)*R*T / P*V

Since P, R and T are contstant, we can simplify this to:

n(O2)/2 = n(CO2)

Step 3:  Calculate moles of O2

Moles O2 = mass O2/ Molar mass O2

Moles O2 = 41.6 grams / 32 g/mol

Moles O2 = 1.3 mol O2

The number of moles CO2 = 0.65 mol

Mass of CO2 = Moles CO2 * Molar Mass CO2

Mass of CO2 = 0.65 mol * 44.01 g/mol

Mass of CO2 = 28.6 grams

The mass of carbon dioxide is 28.6 grams

mark me as brainliest because it took me hour to solve this pls

Maya is playing a trivia game with multiple choice questions. Each question has 222 correct answers among 555 answer choices. Maya has no idea what the answers to a certain question are, so she needs to choose two different answers at random. What is the probability that maya's first guess is correct and her second guess is incorrect? round your answer to two decimal places.

Answers

The probability that maya's first guess is correct and her second guess is incorrect is 0.24

From the question given above, the following data were obtained:

Correct answer (C) = 222Total answer = 555Incorrect answer (I) = 555 – 222 = 333

Next, we shall determine the probability that her 1st guess is correct.

Correct answer, nC = 222Total answer, nS= 555Probability of correct answer, P(C) =?

P(C) = nC / nS

P(C) = 222 / 555

Next, we shall determine the probability that her 2nd guess is incorrect

Incorrect answer, nI = 333Total answer, nS = 554Probability of incorrect answer, P(I) =?

P(I) = nI / nS

P(I) = 333 / 554

Finally, we shall determine the probability that her first guess is correct and her second guess is incorrect.

Probability of correct answer, P(C) = 222 / 555Probability of incorrect answer, P(I) = 333 / 554Probability of 1st correct and 2nd incorrect, P(C n I) =?

P(C n I) = P(C) × P(I)

P(C n I) = (222 / 555) × (333 / 554)

P(C n I) = 0.24

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Answer: 3/10 or 0.3

Explanation: P(1st correct AND 2nd incorrect)= 2/5 • 3/4= 3/10 or 0.3

Madeline was out at a restaurant for dinner when the bill came. Her dinner came to $13. After adding in a tip, before tax, she paid $15. 34. Find the percent tip.

Answers

15.34 - 13

=2.34

2.34 ÷ 15.34 × 100

=15.25%

The life span of a battery is the amount of time the battery will last. The distribution of life span for a certain type of battery is approximately normal with mean 2. 5 hours and standard deviation 0. 25 hour. Suppose one battery will be selected at random. Which of the following is closest to the probability that the selected battery will have a life span of at most 2. 1 hours?.

Answers

The probability that the selected battery will have a life span of at most 2.1 hours is 5.48%.

z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x\ is\ raw\ score, \mu\ is\ mean,\sigma\ is\ standard \ deviation[/tex]

Given that μ = 2.5, σ = 0.25.

For x < 2.1:

[tex]z=\frac{2.1-2.5}{0.25}=-1.6[/tex]

From the normal distribution table, P(x ≤ 2.1) = P(z < -1.6) = 0.0548 = 5.48%

The probability that the selected battery will have a life span of at most 2.1 hours is 5.48%.

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Rochelle plans to sell all of her shares when she can profit $6,250. What must the net asset value be in order for rochelle to sell? a. $12. 50 b. $31. 44 c. $31. 64 d. $100. 0.

Answers

Answer:

C. 31.64

Explanation:

Figure p12. 4 shows three uniform objects: a rod, a right triangle, and a square. Their masses and their coordinates in meters are given. Determine the center of gravity for the three-object system.

Answers

The center of gravity for the three-objects system is approximately located

at their center of mass.

The center of gravity of the three-object system is approximately (2.58, 4.75)

Reasons:

The coordinates of the vertices of the objects and their masses are;

The rod:

Vertices, (2, 7), and (9, 7)

Mass, m₁ = 6.00 kg.

The right triangle;

Vertices; (4, 1), (8, 5), (8, 1)

Mass, m₂ = 3.00 kg.

The square

Vertices; (-5, 5), (-2, 5), (-2, 2), (-5, 2)

Mass, m₃ = 5.00 kg

Required;

The center of gravity for the three-object system.

Solution:

The center of gravity is given by the formula;

[tex]\displaystyle X_c =\mathbf{ \frac{X_{c1} \times m_1 +X_{c2} \times m_2 +X_{c3} \times m_3 }{m_1 + m_2 + m_3}}[/tex]

[tex]\displaystyle Y_c =\mathbf{ \frac{Y_{c1} \times m_1 +Y_{c2} \times m_2 +Y_{c3} \times m_3 }{m_1 + m_2 + m_3}}[/tex]

Where;

[tex]X_{c1}[/tex] = The x-coordinates of the center of the rod = 5.5

[tex]X_{c2}[/tex] = The x-coordinate of the centroid of the triangle  [tex]\displaystyle = \frac{4 + 8 + 8}{3} = \frac{20}{3}[/tex]

[tex]X_{c3}[/tex] = The x-coordinate of the centroid of the square = (-5 - (-2)) ÷ 2 - 2 = -3.5

[tex]Y_{c1}[/tex] = The y-coordinate of the center of the rod = 7

[tex]\mathbf{ Y_{c2}}[/tex] = The y-coordinate of the centroid of the triangle  [tex]\displaystyle = \frac{7}{3}[/tex]

[tex]Y_{c3}[/tex] = The y-coordinate of the centroid of the square = 3.5

Therefore;

[tex]\displaystyle X_c = \mathbf{ \frac{5.5 \times 6 +\frac{20}{3} \times 3 +(-3.5) \times 5 }{6+ 3 + 5}} \approx 2.58[/tex]

[tex]\displaystyle Y_c = \mathbf{ \frac{7 \times 6 +\frac{7}{3} \times 3 +3.5 \times 5 }{6+ 3 + 5}} = 4.75[/tex]

The center of gravity for the three-object system is ([tex]X_c[/tex], [tex]Y_c[/tex]) ≈ (2.58, 4.75)

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