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# Earth Sciences homework help

Sociology homework help. You need to conside , not .

Osmosis is all about the movement of particles through a semi-permeable membrane from a region of lower concentration to a region of higher solute concentration.
Solvent molecules moving away from a less concentrated solution will make that solution more concentrated. Likewise, solvent molecules moving into a more concentrated solution will make that solution more dilute.
This is important because the ratio that exists between the number of solute particles and the number of solvent particles in a solution will affect osmosis.
is used to determine exactly how many moles of solute particles, called osmoles, you get per liter of solution. In essence, does not depend on what type of solute particles you have, but rather on how many of them you have.
In your case, calcium chloride, ##”CaCl”_2##, and sodium chloride, ##”NaCl”##, are both that dissociate completely in aqueous solution.
However, as you noted, the former produces 3 particles per formula unit, while the latter only produces 2 particles per formula unit.
This means that two of equal molarities will have different osmolarities. Let’s say that you have ##”1-M”## samples of both solutions

##”For CaCl”_2: ” “1color(red)(cancel(color(black)(“mole CaCl”_2)))/”L” * “3 osmoles”/(1color(red)(cancel(color(black)(“mole CaCl”_2)))) = “3 osmoles/L”##
##”For NaCl: ” 1color(red)(cancel(color(black)(“mole NaCl”)))/”L” * “2 osmoles”/(1color(red)(cancel(color(black)(“mole NaCl”)))) = “2 osmoles/L”##

In this case, you can see that one liter of water will have a smaller solute-to-solvent ratio in the case of a calcium chloride solution than in the case of a sodium chloride solution.
So if your calcium chloride solution is isotonic with the potato, you can conclude that both this solution and the potato have the same number of solute particles per liter, i.e. the same osmolarity.
This means that the sodium chloride solution is actually hypotonic to the potato and the calcium chloride solution.
What molarity would be needed for the sodium chloride solution in order for it to be isotonic with the potato? Work your way backward to get

##3color(red)(cancel(color(black)(“osmoles”)))/”L” * “1 mole NaCl”/(2color(red)(cancel(color(black)(“osmoles”)))) = “1.5 moles/L”##

So, as a conclusion, two solutions of the same molarity that have different osmolarities will not be isotonic.Sociology homework help

problem sloving.

problem sloving

## BFIN 341 Math Business Finance Questions

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I’m working on a finance exercise and need an explanation to help me understand better.

Please answer the following questions. Please show all your work, including the formula you used. If using a financial calculator please provide steps on what was inputted to reach the answer. EXCEL is not allowed. Question 1You are considering the purchase of an investment that would pay you \$6,000 per year for Years 1-5, and \$4,000 per year for Years 6-7. If you require an 8 percent rate of return, and the cash flows occur at the end of each year, then how much should you be willing to pay for this investment? Question 2 You are given the following cash flow information. The appropriate discount rate is 4 percent for years 1-4 and 4 percent for years 5-10. Payments are received at the end of the year. Year Amount Interest Rate 1-4 \$8,000 4% 5-10 \$11,000 4% What should you be willing to pay right now to receive the income stream above?Question 4 A share of common stock has a current price of \$85.68 and is expected to grow at a constant rate of 8 percent. If you require a 10 percent rate of return, what is the current dividend, Do, on this stock? Question 6undefinedGiven the following probability distribution, what is the expected return and the standard deviation of returns for Security J? State Pi Ri 1 40% 10% 2 25% 12% 3 35% 18% Question 8 undefinedGeneral Dynamics has a bond with 30 years to maturity has a face value of \$1000. The bond pays a 5 percent semiannual coupon, and the bond has a 7 percent nominal yield to maturity. What is the price of the bond today?
BFIN 341 Math Business Finance Questions

## Rasmussen College Attention Deficit and Hyperactivity Disorder Discussion

Rasmussen College Attention Deficit and Hyperactivity Disorder Discussion.

I’m working on a nursing question and need an explanation to help me study.

Ryan is a 12 year old diagnosed with Oppositional Defiant Disorder (ODD). As a small child, Ryan was first diagnosed with Attention Deficit, Hyperactivity Disorder. He had just started preschool and was unable to remain in one place for more than a minute or two. His parents had already had a very difficult time in disciplining him, because he would become very upset and throw temper tantrums when he could not do as he wished. He just seemed to be an unhappy, irritable child. This behavior continued in school. As time progressed, Ryan was diagnosed with Oppositional Defiant Disorder, because he continued to refuse to listen to adults and comply with the rules.By the age of 12, he has begun to bully and annoy others. His parents have decided that the approaches they have used in the past are not working, and they are more afraid his behavior will only get worse.Provide explanations for these questions and statements:Describe the behaviors apparent for each disorder in this scenario (Attention Deficit Hyperactivity Disorder and Oppositional Defiant Disorder).If this behavior becomes worse and Ryan starts to violate the rights of others, what medical diagnosis will be given and why?Discuss at least two types of medication appropriate to treat Ryan and support your choices with rationale and credible resourcesDescribe why therapy for the parent is important in this scenario including at least two supporting rationales.
Rasmussen College Attention Deficit and Hyperactivity Disorder Discussion

## College of San Mateo Providing Short Definitions to Psychology Terms Homework

College of San Mateo Providing Short Definitions to Psychology Terms Homework.

the structure of a neuron. You can also watch this video, Anatomy of Neuron,链接到外部网站。 for additional information.Assignment: In an effort to remember the parts of a neuron, please create a representation that is helpful for you. This might include:Creating a mind mapDrawing a neuron and coloring the structures different colorsWriting a song, poem, story (example on our course web page)Making a model out of clay, beads, pipe cleaners, candy, etc.Please include, label, and provide a short definition the following structures:SomaDendritesDendritic spinesAxonMyelin sheathAxon hillockNodes de RanvierAxon collaterals Terminal buttonTelodendria
College of San Mateo Providing Short Definitions to Psychology Terms Homework

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