what is the molarity of a solution prepared by dissolving 54.3 g of ca(no3)2 to form 355 ml of the solution?
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:
:)
Select all that apply. Check the context clues formedley from the passage by sherwood anderson. Fiddlers tuned room above the store broken sounds shining red faces band played loud blare murmur of voices.
Answer:
1. fiddlers tuned
2. broken sounds
3. band played
4. loud blare
5. murmur of voices
Explanation:
How many terms are in the binomial expansion of (3x + 5)9?.
Answer:
10 terms
Explanation:
For (ax + b)ⁿ, there will be (n + 1) terms;
Easy way to remember this is to think of the basic example (x + 1)¹, which has a binomial to the power 1, and 2 terms;
Similarly, the example of (x + 1)² has the binomial to the power 2 and 3 terms.
According to the big five personality trait theory brainly.
Answer:
The big five theory traits the theory describes are openness, consciousness, extroversion, Agreeableness and Neuroticism
At what height would the gravitational potential energy have a value of 73. 7 joules for a 15 kilogram object? note that acceleration due to gravity is 9. 8 meters/second2.
Which is a perfect square?6 superscript 16 squared6 cubed6 superscript 5.
Answer:
6^2
Explanation:
Guessing the question should be formatted like this:
Question (number) : Which is a perfect square?
a) 6 ^ 1
b) 6 ^ 2
c) 6 ^ 3
d) 6 ^ 5
A perfect square is something squared. (wow)
6^2 is the perfect square
Two samples of solids have similar reactivity with acids and similar densities. Their masses and volumes, however, are not at all similar. Is it possible that these are the same substance?.
The two samples may be the same substance even though they have different masses and volumes.
We must know that properties that identify a substance are called intensive properties. Samples that have similar intensive properties are likely to be the same substance since these properties are characteristic of the substance.
Density is an intensive property. If the two substances have similar densities and similar reactivity with acids, they may be the same substance even though they have different masses and volumes.
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Two glucose solutions of different concentrations are placed next to each other but are separated by a semi permeable membrane. Which of the following will occur?.
There are different kinds of Chemical reaction. What will occur is that a lot of water molecules will move from x to y decreasing the concentration gradient of sucrose.
The solution above (Image inserted) will tend to move down the concentration gradient. That is, the water molecules will move done from the area of more water to area of less water.Osmosis is known to be a chemical situation, where solvent molecules often water move or diffuse via a semipermeable membranes.
This is usually done in regions of low solute concentration to regions of high solute concentration until both sides are equal in concentration of solutes. The solution is said to be water moving from a hypotonic solution to the hypertonic solution.
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After mitosis and cytokinesis are complete which of the following are true.
Two new cells are formed at the end of the process of division of the cytoplasm (cytokinesis) or division of the cell nucleus (mitosis).
At the end of mitosis, the cell has two identical nuclei located at opposite cell ends, immediately the cytokinesis process is triggered, that is, the separation of both daughter cells.
In the entire process of cell division and cytokinesis, chromosomes condense, line up on the equatorial plate, and migrate toward the poles simultaneously.When migration ends, the barriers that separate the new nuclei and the new cells are formed.Therefore, we can conclude that the reorganization between the generated daughter nuclei produces a fractionation of the cytoplasm and definitively separates the new cells.
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the table shows the age in years of employees in a company
Answer:The class with the highest frequency represents the modal class for
Explanation:
What do condensation evaporation and crystallization have in common.
Answer:
They are all a part of the water cycle.
George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns $6. 25 per hour from one part-time job and $7. 50 per hour from the other part-time job. George works a total of 40 hours between the two jobs each week. What additional information is needed to determine the amount of his earnings he saves each week?.
Based on the information given, the additional information that is needed to determine the amount of his earnings will be the number of hours at each job.
From the information given, we are told that George earns $6. 25 per hour from one part-time job and $7. 50 per hour from the other part-time job and that he works a total of 40 hours between the two jobs each week.
Therefore, the additional information required will be the number of hours at each job. This will be vital in solving the question
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According to the lesson which of the following is a type of promotion.
According to the lesson, that which is a type of promotion is: Meritorious Promotion.
In military service, meritorious promotion is given when the officer has reached the capacity of effectively discharging his duties in the new rank.
Thus, he gets the rank because he deserves it and is capable of meeting its expectations.
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What difficulty did russia face in industrializing its economy?.
Answer:
political instability
Explanation:
Russia faced political instability during industrialization and financial problems too
Answer:
pressure from outside markets and typical international economic fluctuations.
Explanation:
A hotel manager recorded the percentage of rooms that were occupied each day over a period of 25 days. The data she collected is shown on the graph. The manager recognizes that the data approximates a transformation of the parent sine function,. Which value is closest to the amplitude of the transformed function?.
Answer:
15
Explanation:
plato users!
Which of the following best describes the sources that contribute to your online identity?.
People are known to have online identity. The factor that contributes to an online identity is said to be closely linked with users through authentication. This is known to requires registration and logging in.
A lot of websites often use the user's IP address or tracking cookies so as to be able to identify users.
An online identity can be defined as a thing that arise from a social media profile to a shopping cart etc. it can is often referred to as social identity that is often liked to an online community.
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In the poem by william shakespeare (published in 1609), the speaker contemplates the value of love. Read the poem carefully. Then, in a well-written essay, analyze how shakespeare uses poetic elements and structural techniques to construct a statement about the complex interaction between self-esteem and love.
There are different kinds of Poetic elements. The poetic element and structural techniques used are couplet, sonnet, Rhyme Scheme, Iambic pentameter.
Sonnet: A sonnet is simply defined as a fourteen lined poem that is offten written in iambic pentameter. This Shakespearean sonnet is known to have one octave and sestet.
Couplet: not that there is always good and well written lines of verse in a couplet, and they are found in the same meter and often linked by rhyme. In this poem, the sonnet was known to have ended with a couplet. This therefore depicts the key or central idea of the poem.
Rhyme Scheme: The rhyme scheme in this poem is known to be accompanied by a full sonnet called ABAB CDCD EBEB FF.
Iambic Pentameter: It is commonly known to be a type of meter that is known to also have five iambs. This poem is known to have Iambic Example given is quoted below “When in disgrace with Fortune and men’s eyes.”
The literary devices used in this poem are Assonance, imagery, consonance, etc.
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Complete the two-column proof by providing the missing statements or reasons. Given: is rhombus prove:.
Answer:
Where is the two column proof?!
Which of the following is an example of a job surplus.
Answer:
The demand for roofers is higher than the number off people willing to do roofing
An example of a job surplus is the demand for roofers is higher than the number of people willing to do roofing. Option A
How to determine the exampleA job surplus refers to a situation in the job market where there are more available workers or job seekers than there are job openings or positions available. In other words, it's a condition where the supply of labor exceeds the demand for it in a particular field or industry.
'The demand for roofers is higher than the number of people willing to do roofing', illustrates a scenario of job surplus. This means that there are more roofing job opportunities available than there are individuals who are willing to take up the job of being a roofer.
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The complete question:
Which of the following is an example of a job surplus? (1 point)
The demand for roofers is higher than the number of people willing to do roofing.**
Roofers demand more pay for the work they are doing.
The number of roofers is higher than the roofing jobs available.
There are more roofing materials being manufactured than there are houses that need them.
the table below shows the ages of houses to the nearest year in a neighborhood. using the age of the houses as the random variable, x, which graph shows the probability distribution, px(x), of a randomly chosen house?
Probability distributions are used to represent data and their probabilities
The table entry is given as:
Age of House Number of Houses
1 15
2 20
3 25
4 30
Start by calculating the probability of selecting a house that has a certain age.
This is calculated as:
[tex]Pr =\frac{Number\ of\ house}{Total\ number\ of\ house}[/tex]
So, we have:
[tex]P(1) = \frac{15}{90} = 0.17[/tex]
[tex]P(2) = \frac{20}{90} = 0.22[/tex]
[tex]P(3) = \frac{25}{90} = 0.28[/tex]
[tex]P(4) = \frac{30}{90} = 0.33[/tex]
This means that the graph that represents the probability distribution must show that the probability of 1 is 0.17; 2 is 0.22; 3 is 0.28; 4 is 0.33.
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Answer:
a on edge
Explanation:
welcome
The bureau of labor statistics has found that the base-year expenditures of the typical consumer break down as follows:.
Answer:
2. mention any five virtues that can be regarded as universal virtues. 3. manners are social behaviors that help us build and strengthen relationship
Explanation:
2. Mention any five virtues that can be regarded as universal virtues. 3. Manners are social behaviors that help us build and strengthen relationship
The book that i read was entertaining passive voice.
The best way to change the given sentence from an active voice to a passive voice is: I was entertained by the book I read.
A passive voice can be defined as a form of verb in which the subject of a sentence undergoes the verb's action. Thus, a passive voice simply means that the subject of the sentence actively undergoes the action stated by its verb or is being acted on by the verb.
This ultimately implies that, a passive voice is typically used when a speaker or writer wants to make emphasizes on the action of a verb (verb's action) and the direct object of a sentence rather than its subject.
Note: The book is the object while entertaining is the verb's action.
In this scenario, the best way to change the given sentence from an active voice to a passive voice is "I was entertained by the book I read."
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Describe the nature of the roots for the equation 49x^2-28x+4=0.
In the first paragraph of the passage on pages 2 and 3.
Which steps are part of the process of citing supporting details? select four options.
Explanation:
finding repeated words and phrases
determining the central idea
writing a summary of the text
looking for facts and examples
considering all the evidence
including only the minor details
answer
Where can you find an online library catalog weegy.
People finds information from online library catalog. Where can you find an online library catalog is Any of the library's computers, and often the library's homepage.
An online library catalog is known to be an electronic bibliographic database that shows or talks about the books, videotapes, etc. that is often seen and carried by a specific library.
It is known to have originated from a printed source and the library card catalog. It is known to have drawers that has the records of particular items in the library.
See full question below
Where can you find an online library catalog?
A. It depends on whether the library uses the Dewey Decimal System or the Library of Congress System
B. In the same physical location with the card catalog
C. Any of the library's computers, and often the library's homepage
D. Behind the reference librarian's desk
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Translate: i am hungry. Yo soy hambre. Yo estoy hambre. Yo tengo hambre. Yo es hambre.
Happy Holidays!
Yo tengo hambre.
Yo = I
Tengo = have (I form)
Hambre = hunger
Even though this literally translates to "I have hunger", this expression is used to say the equivalent "I am hungry".
The correct translation of "I am hungry" in Spanish is: "Yo tengo hambre."
Thus, option (c) is correct.
"Yo soy hambre" is not the correct translation.
In Spanish, "soy" means "am" and "hambre" means "hungry," but they are not used together in this context to mean "I am hungry."
"Yo estoy hambre" is also not the correct translation.
"Estoy" means "am" and "hambre" means "hungry."
However, in Spanish, the correct way to express hunger is by using the phrase "tener hambre."
"Yo tengo hambre" is the correct translation.
"Tengo" means "I have," and "hambre" means "hunger."
So, "Yo tengo hambre" translates directly to "I have hunger," which is the equivalent of "I am hungry" in English.
The phrase "Yo es hambre" is not grammatically correct in Spanish.
Thus, option (c) is correct.
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7,528 irrational or rational
Answer:7528 is not a rational number
Explanation: because we know it is not a perfect square.
The sequence below represents marisa’s fine at the library for each day that she has an overdue book: $0. 50, $0. 65, $0. 80, $0. 95, $1. 10,. Which equation represents marisa’s library fine as a function of a book that is n days overdue?.
Answer:
C
Explanation:
what significant changes have you noticed in your relationship with others brainly
Answer:
That I’m starting to open up more with others.