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October 22, 2014

Search: Chemistry: Raoult's Law

Number of results: 50,116

Chemistry
how do i find which substances are most likely to obey raoult's law?
February 2, 2010 by Anonymous

chem
How would i found out the freezing point of a solution which has 0.05mol of acetic acid dissolved into 125g of benzene? Benzene melts at 5.5C and has a constant of 5.1C/m. The acid forms a dimer (what is this and how does it affect the calculations?) A dimer is a molecule from...
August 7, 2007 by Chris

chem
The concentration unit used in Raoult's Law calculations is???
February 7, 2008 by miley

Chemistry
Can someone plese check my answer...thank you! According to Raoult's law, as the mole fraction of dissolved nonvolatile solute in a given amount of solvent increases, the solution vapor pressure: VARIES AT RANDOM?
December 18, 2007 by anonymous

Chemical Engineering: Raoult's Law
A binary mixture of benzene and styrene is kept in a closed vessel at equilibrium such that both liquid and vapor phases co-exist. The total amount of moles in the vessel is 100. The total moles of benzene that is distributed in the liquid and vapor phases is 35. The ...
November 18, 2012 by Silas

Chemistry
Raoult's Law and Ionic or Organic Solutions At 55.0 C, what is the vapor pressure of a solution prepared by dissolving 62.8 g of LiF in 247 g of water? The vapor pressure of water at 55.0 C is 118 mmHg. Assume complete dissociation of the solute.
January 25, 2010 by Saira

science
The concentration unit used in Raoult's Law calculations is: a. mole fraction b. percent by weight c. molarity d. molality e. none of these I think the answer is A... is is corrent ?
February 8, 2008 by Kim

science
The concentration unit used in Raoult's Law calculations is: a. mole fraction b. percent by weight c. molarity d. molality e. none of these I think the answer is A... is is corrent ?
February 8, 2008 by Kim

Chemistry
The vapour pressure of pure water at 110 c is 1070 torr.A soln of ethyleneglycol in water has vapour pressure of 1 atm. Assuming that raoult's law is obeyed, what is the mole fraction of ethylene glycol in water?
October 30, 2011 by Ethio

chemistry
which pair of substances are most likely to obey Raoult's Law? C5H12 and C6H14 H3PO4 and H20 C4H9COOH and C5H12 C5H12 and H20 C4H9COOH and H20 How do I go about figuring this out? What should I be comparing, differences in molar masses, polarity, etc...?
February 2, 2010 by Anonymous

Chemistry
How does dissolving a solute affect the boiling point or freezing point of the solution? What about the solution's vapor pressure? Read about Raoult's Law, freezing point depression and boiling point elevation.
March 6, 2007 by John

chemistry
What is the total vapor pressure4 at 20° C of a liquid solution containing 0.30 mole fraction benzene, C6H6, and 0.70 mole fraction toluene, C6H5CH3? Assume that Raoult’s law holds for each component of the solution. The vapor pressure of pure benzene at 20° C is 75 mmHg; that...
September 14, 2010 by Tim

college chemistry
.361 g of a non-volatile solute is dissolved in 160.0 g of water. The solute does not react with water nor dissociate in solution. Assume that the resulting solution displays ideal Raoult's law behaviour. At 90 oC the vapour pressure of the solution is 5.1701×102 torr. (The ...
February 18, 2011 by silver

Science-Chemistry
1. What is Charles’s law? • State the definition of the law in words. • What are the assumptions of Charles’s law? • Write mathematical equations that represent the law. • What can you do with Charles’s law? • Using a gas-filled balloon as an example, describe what happens to ...
May 31, 2013 by Help needed.... Danielle

chemistry
According to Raoult's law, which statement is false? a. The vapor pressure of a solvent over a solution decreases as its mole fraction increases. b. The solubility of a gas increases as the temperature decreases. c. The vapor pressure of a solvent over a solution is less than ...
March 14, 2008 by thanh

chemistry
1. what gas law does the nitric oxide relate to and why? (**charles law, boyles law, combined gas or gay-lusaacs law) 2. What gas law does nitrogen monoxide relate to? (**charles law, boyles law, combined gas or gay-lusaacs law)
October 4, 2010 by navroz

government
Which branch of the law regulates wrongful acts involving injury to one’s person, property, or reputation in a situation not covered by the terms of a contract? A. common law B. tort law C. civil law D. contract law
March 8, 2012 by Johana

government
Which branch of the law regulates wrongful acts involving injury to one's person, property, or reputation in a situation not covered by the term of a contract? A. common law B. tort law C. civil law D. contract law
April 2, 2012 by Charlette

science
1)effects of impurities on the boiling point of an organic compound. 2) purposes why melting points are determined. 3)suppose i am taking a melting point and the compound disappears, what must i do? Have you put any thought into these or do you expect us to do your homework? ...
August 15, 2007 by bugalo

bus law
What is the chronological order of the major legislation that makes up the history of employment law in this country? For each law, state the social problem the law was designed to address, and discuss how employment law has affected the workplace in the last two decades.
September 2, 2010 by kash

Government Law question
What kind of law is it when judges make the law by their decisions on the bench? ___ Law
January 14, 2013 by Allyson

Law
Research and identify a labor law that is specific to your state. Share a brief summary of the law with us and discuss why you believe this law is or is not important to the employer-employee relationship.
November 29, 2013 by Mattiazz

Chemistry: Raoult's Law
If 0.380 mol of a nonvolatile nonelectrolyte are dissolved in 3.00 mol of water, what is the vapor pressure P(H2O) of the resulting solution? The vapor pressure of pure water is 23.8 torr at 25 C. I got this answer correct: 21.1 torr A solution is composed of 1.50mol ...
September 2, 2010 by Sar

legal and ethical issues
select a current or proposed law that impacts the delivery of human services what reliable resources are availiable to learn about the implications of this law? What is the purpose or rationale of the law? How will the law effect da-t-day operations within human service ...
June 2, 2008 by Tiff

CHEMISTRY
Show how Boyle's law can be derived from the ideal gas law.
May 7, 2010 by ~anonymous

chemistry
Explain how the use of masses, while not a component of Boyle's law, is related to the law.
April 24, 2010 by chase

Chemistry
An example of a solution that exhibits a positive deviation from Raoult’s Law (total pressure is greater than expected) is a solution of acetone (CH3COCH3) and carbon disulfide (CS2). a) Draw Lewis structures for these molecules. Explain the deviation from ideal behavior in ...
March 11, 2012 by Laffy Taffy

Chemisrty
Determine which law is appropriate for solving the following problem. What volume will 1.56 liters of a gas at 27°C and 745 mmHg of pressure occupy at 100°C and 700 mmHg of pressure? Law used: Boyle's Law Charles' Law Combined Gas Law
October 19, 2011 by Angel

Chemistry - Rate Law
The following example is given in my textbook: If a chemical equation is: NO2 (g) + CO (g) -> NO (g) + CO2 (g) The rate law is: Rate = k[NO2]^2 Usually you put in the reactants in their own sets of brackets, so why isn't the reactant CO involved in the rate law? I get it ...
January 31, 2007 by Belinda

bioethics
what is law natural law eternal law human positive law what is conscience different kinds of conscience pls need an answer thanks
June 20, 2011 by joyce

Law
Hi there! I have totally got to find out how the Aussie Law is similar to the US law. Anyway I DO like know that like Oz follows England law mainly but that isn't what I need. Bushells of Thanks Minnie
April 25, 2008 by Minnie

business
what is the chronological order of the major legislation that makes up the history of employment law in this country? for each law, state the social problem the law was designed to address and whether the law has solved the problem.
April 27, 2011 by Sean

Chemistry (henry's law and IGL)
Can Henry's Law be used for gases that obey the Ideal Gas Law? What about gases that do not obey the ideal gas law? when can you use/Not use henry's law?
November 8, 2012 by Ania

bus/415
What is the chronological order of the major legislation that makes up the history of employment law in this country? For each law, state the social problem the law was designed to address, and discuss how employment law has affected the workplace in the last two decades.
August 17, 2010 by Shelly

chemistry
What is Dalton's law of partial pressures? Explain how this law relates to the fact that mountain climbers must carry tanks of oxygen when scaling high peaks.
August 4, 2008 by Dan

law
there are two kinds of law in south africa.write a paragraph in which you identify these two kinds of sources of law;name the examples of sources of law that belong to each kind;and indicate the differences betweem these teo kinds of sources of law.
March 16, 2014 by nancy

chemistry
what is the difference between the combined gas law and the ideal gas law? are they the same thing?
March 2, 2009 by kayla

government
the election process is largely governed by a. state law b. federal law c. local law d. PACs b
December 27, 2007 by jere

LAW
Can someone please explain to me how you could tell the difference between public law and private law?
October 13, 2008 by Mae

math Law of Syllogism and Law of Detachment
What is the difference between Law of Detachment and The Law of Syllogism ? pLEASE provide an example of both thx.
November 14, 2008 by Naya

Physics
What is the connection between Weber’s Law, Fechner’s Law, and Steven’s Power Law
September 6, 2014 by Vanessa

criminal law
1 Constitutional law The law as expressed in the U.S. Constitution and the various state constitutions. The U.S. Constitution is the supreme law of the land. State constitutions are supreme within state borders to the extent that they do not violate the U.S. Constitution or a ...
October 28, 2009 by Mary

Health
If HIPAA rules are sticter than state law, which standard should you follow and why? This is what I beleive the answer is. Could somebody confirm that I'm at least on the right trail or that this is right or wrong? Answer: The stritest law prevails, whether it's state or ...
October 22, 2008 by Dee

law
In their professional capacity, attorneys strive to make sure that their clients’ interests are protected by: (Points: 5) regulation. law. the bar association. guidelines Is it "Law"
October 12, 2011 by tobby

Sociology
That a judge has to issue a warrant for a household search derives from ____________. a) probable cause b) substantive law c) procedural law d) mala en se law I believe the answer is (c)
November 4, 2012 by Tammy

technology
Need help on the question below. I have read all about all 3 laws but still don't understand if this would be 1st or 2nd law. "A ball is rolling in a straight line on a hardwood floor. A cat hits it from the right, so the ball rolls left. Which Law of Motion is this? a. Netwon...
March 14, 2014 by Brandi

Government
What is "Law Codes"? Law codes are the written law, published and recognized as the law.
January 4, 2007 by Jack

Chemistry
may i plz get help ...regarding the statement of rate law..4rm the topic of chemical kinetics..i am unable to find the exact law statement..:( and i need it before mon.. i hope to get assissted soon! thankyou..!
April 18, 2009 by humaira

AED 204
explain in no more than 150 words per law, what requirements each law places on educators in their classrooms Case Law Brown v Board of Education Parc v The Commonwealth of Pennsylvania Mills v Board of Education Section 504 of Public Law 93-112 Public Law 94-142 Americans ...
June 25, 2010 by TY

Chemistry Combined Gas Law
Hi so im reviewing or our long test tomorrow on combined gas law and gay lussac's well here, combined gas law i find it (maybe ) confusing to do this one, because theres no right answers because it is a practice exercise.. what i know on combined gas law is that pressure is ...
January 28, 2014 by Joy

chemistry
50cm/3 ofsulphur(iv) oxide were produced at stp when some quality of powdered sulpur were burnt in excess oxygen. (1) which equation is suitable.(2) what volume of oxygen was used up during the reaction.(3) which of the gas law is applicable. State the law.
February 17, 2012 by Promise

chemistry
using the ideal gas law or the combined gas law,why does the air pressure inside the tires on my motorcycle increases during the time I am riding it. Consider what factors are being kept constant and what are changing and how. What if I weigh alot?
February 24, 2014 by tricia

physics
Choose the correct description for each "Law" of Electricity & Magnetism. The choices are faradays law lenz law ampere law are my choices correct Gives the amount of current resulting from a changing magnetic field.AMPERE LAW Gives the strength of the magnetic field resulting ...
May 1, 2011 by Ana

Inorganic Chemistry
Which aqeuous solution has a freezing point closest to that of 0.30M C12H22O11? A) 0.075M AlCl3 B) 0.15M CuCl2 C) 0.30M NaCl D) 0.60M C6H12O6 I know the answer but I don't know the reason or rationale behind it. Please explain. I suggest you review Raoult's Law at http://...
August 5, 2007 by Vic

Physics
How do I use Kirchhoff's First Law -- the law of conservation of energy and the law of conservation of charge to prove the equivalent resistance formula. Rt = R1 + R2 + R3 ......
May 27, 2012 by Art

law
looking for an article relating to civil law, The article can no be older than December 2010 and it has to relate to the contemporary law and justice. Any suggestions?
February 26, 2013 by Gabby

LAW
looking for an article relating to civil law, The article can no be older than December 2010 and it has to relate to the contemporary law and justice. Any suggestions?
February 26, 2013 by Gabby

trigonometry
Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30" I have to use logarithms and law of tangents . and then provide the check. which says law of sine or mollweids equation. I can't us the cosine law. If you ...
February 26, 2011 by Anon

law
What are the two main functions of criminal law? Describe the written sources of American criminal law and their purposes.
December 13, 2009 by michelle

HSM230
Assignment: HSM Law Profile Paper · Due Date: Day 7 [Individual] forum · Select a current or proposed law that impacts the delivery of human services. · Write a 1,050- to 1,400-word paper in APA format that answers the following questions: o What reliable resources are ...
November 3, 2008 by Loey

hsm230
Assignment: HSM Law Profile Paper · Due Date: Day 7 [Individual] forum · Select a current or proposed law that impacts the delivery of human services. · Write a 1,050- to 1,400-word paper in APA format that answers the following questions: o What reliable resources are ...
May 16, 2010 by shauntae

Columbs Law
I need help with the following questions from my homework. thanks! How does one coulomb of charge compare with the charge of a single electron? How is coulombs law similar to Newton's law of gravitation? How is it different?
November 5, 2007 by Whit

physics
1. Suppose that the strength of the electric field about an isolated point charge has a certain value at a distance of 1 m. How will the electric field strength compare at a distance of 2 m from the point charge? I know it's At twice the distance the field strength will be 1/4...
July 14, 2010 by anonymous

Algebra 2
Using the information given about a triangle, which law must you use to solve the triangle? Law of Sines, Law of Cosines, or Neither. ASA SSS SAS AAA SSA AAS
February 13, 2012 by Katy

Media Law
In what ways does the history of copyright law impact on the nature of copyright law today?
October 6, 2009 by Breanna

business law
A NEW STATE LAW MANDATES THAT ALL EMPLOYERS MUST PORHIBIT SMOKING ON PRESMISES. THE LAW FURTHER PROVIDES THAT ANY EMPLOYER WHO ALLOWS EITHER AN EMPLOYER OR A CLIENT/CUSTOMER TO SMOKE BE SUBJECT TO A COURT ORDER REQUIRING THE EMPLOYER TO ENFORCE THE LAW. DESCRIBE THIS STATUTE ...
February 6, 2008 by DEE

English
What is an explanation when someone says: "The our crime's worse than a murderer's. His act puts him outside the law, but keeps the law intact. Ours would weaken the law." P.s. These men are forming a posse to hang a gang that killed one of their townsmen.
October 19, 2010 by Samantha

business law
A NEW STATE LAW MANDATES THAT ALL EMPLOYERS MUST PORHIBIT SMOKING ON PRESMISES. THE LAW FURTHER PROVIDES THAT ANY EMPLOYER WHO ALLOWS EITHER AN EMPLOYER OR A CLIENT/CUSTOMER TO SMOKE BE SUBJECT TO A COURT ORDER REQUIRING THE EMPLOYER TO ENFORCE THE LAW. QUESTION: DESCRIBE THIS...
February 6, 2008 by Dee

english + law - creating sentences
Use Amending formula, rule of law and civil law individually in sentences. Please help me form sentences, i cannot crack my brain around these three.
January 25, 2011 by Farah

Law
1. What does the expression, “Policing by the letter of the law” mean? A. Police officers strictly interpret and enforce the law according to the exact statements of the law. B. Police officers loosely interpret and enforce the law according to the intentions behind the law ...
May 13, 2014 by Amy

Another Law question
An action in________ law would be the most appropriate way to stop a construction company from razing a 150-year-old house that sits on property that you claim as your own. A. common B. equity C. criminal D. civil This would be an action in civil law. Am I correct? An action ...
January 24, 2007 by Natasha

English
1 Constitutional law The law as expressed in the U.S. Constitution and the various state constitutions. The U.S. Constitution is the supreme law of the land. State constitutions are supreme within state borders to the extent that they do not violate the U.S. Constitution or a ...
October 28, 2009 by Mary

chemistry
so here i am doing my hw worksheet on the ideal gas law/ghram's law ad i have gotten to this one problem where i am totally stuck and confused. Please help me by telling me how to set this up and giving me tips, if necessary. What is the mass(in grams) of ammonia gas(NH{tiny #...
January 11, 2010 by hellogoodbie

Introduction to the Criminal Justice System
Is Common Law, Statute, and Jurisdiction sources of Criminal Law? What I have is, almost all criminal prosecutions today are based on criminal laws defined by statute rather than by the common law. That is true, because punishment is clearly stated in statue. Common law often ...
November 12, 2006 by Jo

HIPPA
please check my answer thanks If HIPPA law is stricter than state law, which standards should you follow and why ? What if state all was stricter ? This is all I have so far any input would be great HIPPA laws are stricter than any state law. This standard over rules any state...
May 12, 2008 by Casie

Bus law
Why is the United State a “common law country”? We're a common law country because we follow precedents established over hundreds of years in Britain and the U.S. Common law is followed except when statutory law opposes a specific practice. Check this site for more information...
February 19, 2007 by mike

chemistry
so here i am doing my hw worksheet on the ideal gas law/ghram's law ad i have gotten to this one problem where i am totally stuck and confused. Please help me by telling me how to set this up and giving me tips, if necessary. What is the mass(in grams) of ammonia gas(NH{tiny #...
January 11, 2010 by hellogoodbie

chemistry
So here I am doing my HW worksheet on the ideal gas law/graham's law ad I have gotten to this one problem where I am totally stuck and confused. Please help me by telling me how to set this up and giving me tips, if necessary. What is the mass (in grams) of ammonia gas (NH {...
January 11, 2010 by hellogoodbie

Anatomy & Physiology
How do the gas laws (Daltons, Boyles and Henrys)apply to the respiratory processes? I will be happy to critique your thinking on this. I know Dalton's Law is the law of partial pressures, Boyle's law is the law for a fixed mass of ideal gas at fixed temperature, the product of...
March 21, 2007 by Aletha

these questions left...someone help
In addition, briefly discuss the sources of criminal law. How does constitutional law affect the development of the criminal code? What are common law crimes as opposed to actions criminalized by statute? Only last two questions... nevermind..
September 3, 2006 by Timothy K.

business law- fill in the blanks
Business law reflects the values of the _________________ _________. common law, society's values, business owners, ordinary consumer??? What does your book say?
March 3, 2007 by Anonymous

env, sci
distinguish between the first law of thermodynamics energy and the second law of thermodynamics energy Energy as defined in both laws has the same meaning. It is the laws that are different. The second law involves the direction of heat flow, the role of temperature and a ...
July 14, 2007 by Susan

Criminal law
i'm needing help under standing the assignment please help. Describe the purposes of criminal law.Describe the two main functions of criminal law.Describe the written sources of American criminal law and their purposes.Describe how criminal responsibility can be limited....
September 6, 2008 by Tina

Law and Medicine
If HIPAA rules are stricter than state law, which standard should you follow and why? What if the state law was stricter?
April 1, 2010 by Chira

Chemistry Hess's Law
(1) 2 Ni(s) + O2 (g) --> 2NiO(s) delta H= -479.4 kJ (2) Ni(s) + Cl2(g) --> NiCl2(s) delta H= -305.3 kJ Using equations 1 and 2 and Hess's Law, determine the amount of moles Nickel (ii) Chloride that was combusted given the following: volume = 15.45 L pressure = 2.29 atm...
October 23, 2013 by Brian

Law
I am having a hard time and very pressed for time. Thanks in advance;) Select a current or proposed law that impacts the delivery of health care or human services. „FƒnWrite a 1,050- to 1,400-word paper in APA format that answers the following questions: What is the purpose or...
October 8, 2007 by Need help before midnight...help

Chemsitry
Which of hte laws of thermodynamics provides a criterion for spontaneity? the zeroth law, the first law, the second law, and the third law? This site will give you zeroth, first, second, and third laws. You may need to scroll down a little but it on the right of center of the ...
April 27, 2007 by Cindy

Math
1. Given the product law of logarithms, prove the product law of exponents. 2. Given the quotient law of logarithms, prove the quotient law of exponents. 3. Apply algebraic reasoning to show that a=b^(loga/logb) for any a,b>0 Please explain these to me. All I know is that ...
May 25, 2009 by Jus

US history
1) The ideals of the Athenian State , Roman law, and the Mayflower Compact contributed most significantly to the growth of the principles of 1. government under law and the consent of the governed. 2. religious freedom and women's suffrage. 3. checks and balances and ...
October 12, 2010 by Anonymous

Chemistry
What is the correct rate law for the following reaction? 2 NO2(g) + F2(g) → 2 NO2F(g) rate = kf(NO)2 rate = -kf(NO2)2(F2) rate = kf(NO2)2(F2) rate = -kf(F2) Not enough information is available to determine the rate law.
May 16, 2011 by dude

physics
why the electric and magnetic fields are perpendicular to each other? why we need ampere circuital law when we already have bio sevarts law? why we use sin(theta) in the bio sevarts law why not the other ratios?
August 2, 2014 by shiva

chemistry
I'm stumped again :( the question is - A gas sprayed from an aerosol can effuses 5.06 times slower than oxygen.If the molar mass of oxygen is 32.g/mol, what is the molar mass of the unknown gas? I dont know if I am doing the ideal gas law or grahams law or how to set it up. ...
January 11, 2010 by hellogoodbie

chemistry
The equation A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must be a. rate = k(A]2 b. rate = k(B]2 c. rate = k(A][B] d. rate = k(A][B]2 e. none of the above represents the rate law for this elementary reaction.
February 24, 2012 by bob

chemistry
The equation A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must be a. rate = k(A]2 b. rate = k(B]2 c. rate = k(A][B] d. rate = k(A][B]2 e. none of the above represents the rate law for this elementary reaction. help
February 25, 2012 by bob

Criminal law .
Describe the purposes of criminal law. Describe the two main functions of criminal law. Describe the written sources of American criminal law and their purposes. Describe how criminal responsibility can be limited. Describe the procedural safeguards that protect American ...
September 7, 2008 by Tina

geometry
I honestly need help on this question. Determine whether statement(3)follows from statements(1)and(2)by the law of detachment or law of syllogism.If it does,state which law was used.If it does not,write invalid. (1)If n is an integer,then n is a real number. (2)n is a real ...
September 13, 2012 by stef

Physics - Newton's Law of universal gravitation
Describe how Newton used each of the following phenomena to support the law of universal gravitation a) the orbit of the moon b) kepler's third law
August 22, 2010 by Shaila

Government
What is "Suits of Law'? A suit of law is when someone bring legal action against someone else... whether a person or a business or a part of the government. it is a law suit.
January 4, 2007 by Jack

International Law
Explain International law and how it differs from national law
December 22, 2007 by Ryan

World History Answer Check (Ms.Sue)
How did King Henry II's goal to become more powerful affect the development of law? A: Henry's goal to become more powerful affected the development of law as it ultimately expanded the power of royal courts. Since royal courts were now found throughout England, a body of ...
September 14, 2014 by Victoria

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