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August 22, 2014

Search: College Chemistry- Hess's Law

Number of results: 55,707

chemistry
I am a freshman in college, and am taking a placement test soon, but haven't seen chemistry since 10th grade. I'd appreciate any help I can get from anyone here to help me solve this problem: Hydrogen and sulfur chemically combine to form the gas hydrogen sulfide, according to...
January 5, 2012 by John

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

College Chemistry
Calculate the electrode potential of a copper half-call containing 0.05M Cu(NO3). E^0 Cu2+/Cu = 0.337 V College Chemistry - DrBob222, Tuesday, April 20, 2010 at 5:19pm E = Eo - (0.0592/n)log[(Cu)/(Cu^+2)] Substitute 2 for n and 0.05 M for Cu^+2 and 0.337 for Eo. Solve. Am I ...
April 20, 2010 by L**

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

College Chemistry
Using the molar volume (STP) or the ideal gas law equation, determine the molar mass,g/mole, of each of the following. A: 11.2g of a gas that has a volume of 1.50Lat STP? B: .0710g of a gas that has a volume 825ml at 1 atm
October 21, 2012 by Will

GEOL 108
Do you have the answers to exercise 30 in Darrel Hess's Physical Geography Laboratory Manual tenth edition?
October 18, 2012 by arthur

CHEM
Can you please check my work? I got -4.3KJ/mol If this is not right can you tell me what I am doing wrong? Thank you! Questions. 1.a. Use Hess's Law and the measured mean enthalpy changes for the NaOH-HCl and NH3-HCl reactions to calculate the enthalpy change to be expected ...
November 8, 2013 by Lauren

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

law
In your opinion should there be a specific curriculum included in school and college syllabus which would teach students on interpersonal cohesiveness?
February 21, 2012 by sharday

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

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

economics
Over the last 30 years in the United States, the realprice of a college education (i.e., after adjusting for inflation) has increased by almost 70 percent. Over the same period, an increasing number of high school grad- uates have sought a college education. (Nationwide ...
April 20, 2012 by Joanne

college chemistry
An unknown was prepared with the concentration of 0.000266 M. A Beer's Law plot was prepared using the absorbance values from standard solutions of ASA and a line drawn through all the points passed through the origin with a slope of 1646.3 M^–1. What are the expected ...
April 20, 2009 by zahra

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

chemistry
I'm trying to figure out what went wrong during my freshman chem lab. We were figuring out the enthalpy of formation of MgO(s). MgO(s) + 2H+(aq) -> Mg2+(aq) + H2O(l) dHrxn = -334.83kJ/mol Mg(s) + 2H+(aq) -> Mg2+(aq) + H2(g) dHxrn = -1105kJ/mol H2(g)+ 1/2O2(g) -> H2O(l...
April 5, 2013 by Louie

College Physics
If you slam your finger in a car door how can you thank Coulomb's Law for the fact your finger wasn't chopped off? I don't understand.
March 14, 2010 by J

criminal law/ college
I need to identify the bail sytem beneficiaries and what are some recommendations for the future of the bail system
May 25, 2010 by nette28

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

college
I have to write a "journal article reviews" for Medical Law & Ethics. I have some articles already but don't know how to start it. thanks
November 21, 2010 by Mary

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

College Hca 210
Write a 350- to 700-word paper on one of the following laws: HIPAA (1996) or EMTALA (1986). Pretend you are a health care manager employed at a small community hospital responsible for educating your staff about HIPAA (1996) or EMTALA (1986). Include the following in your ...
January 30, 2012 by Karen

college
Write a 350- to 700-word response describing three case law decisions from the chapter you believe have the most substantial impact on policing today.
February 13, 2010 by tiana

College Chemistry
Now the reaction (2NO+2H2==> 2H20+N2) is believed to take place in three steps, the first of which is the fast reversible dimerization of NO to form N2O2, and the last of which (again fast) is the reaction N20 + H2 --> N2 + H2O. So, what is the slow (second) step? Then ...
April 17, 2012 by Crystal

chemistry - decomposition of water(help)
Hydrogen is a very appealing fuel, in part because burning it produces only non-polluting water. One of the challenges that researchers face in making hydrogen fuel a reality is how to produce hydrogen economically. Researchers are investigating methods of producing hydrogen ...
March 3, 2011 by Farah

chemistry - decomposition of water(help)
Hydrogen is a very appealing fuel, in part because burning it produces only non-polluting water. One of the challenges that researchers face in making hydrogen fuel a reality is how to produce hydrogen economically. Researchers are investigating methods of producing hydrogen ...
March 3, 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

College Help
I'm going to college this September, and would like to know of any good web sites for beginning college students.
July 28, 2008 by Sally

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

misc.
if something says your pursuing a college degree does that mean your in college are are planning in the future to go to college?
May 27, 2011 by Sara

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

college
When is noble-case corruption, such as the Dirty Harry problem, justifiable? Must law enforcement use extreme means to catch criminals? Explain your answer in a 200-300 word reply.
October 22, 2009 by carolyn

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

College physics
According to Newton's Third Law, for every action there is an equal an opposite reaction. If the current on the wire is such so that the magnetic force on the wire points upward, what must be true?
July 26, 2010 by emoni

AP US Government
Where in the Constitution are judicial nominations described? What language is used to describe the roll of the Senate in Supreme Court nominations? Where in the constitution is the Electoral College described (Hint: two places) Since this is not my area of expertise, I ...
September 27, 2006 by Kristin

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

statistics
At a small college it is known from previous years that 35% of all college freshman start in college algebra. The new freshman class has 100 students in it, What is the probability that between 35 and 42 freshman will start in college algebra? Is it reasonable to approximate ...
March 23, 2012 by lola

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

persuasive essay!!
Is it better to go to college and be successful or open your own business without a college degree? Need help writing thesis. What are some benefits of going to college rather than not going to college and opening your own business
March 24, 2008 by Taniya

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

Statistics
What percentage of college students are attending a college in the state where they grew up? Let p be the proportion of college students from the same state as that in which the college resides. If no preliminary study is made to estimate p, how large a sample is needed to be ...
August 1, 2012 by Anonymous

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

Chemistry II
C4H4 (g) + 2 H2 (g) --> C4H8 (g) Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 kJ/mol), C4H8 (-2755 kJ...
May 20, 2007 by Jayd

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

Philosophy
Martin Luther King, “Letter from Birmingham Jail,” draws from the thought of Thomas Aquinas in saying “an unjust law is a human law that is not rooted in eternal and natural law. Any law that uplifts human personality is just. Any law that degrades human personality is unjust...
April 30, 2013 by Christopher

Choosing High School Courses
I want to major in something English or History related, probably Secondary Education, International Studies, or Journalism. I am currently enrolled in chemistry and I am doing horribly. Would colleges rather see me take chemistry and get a bad grade, or would they prefer me ...
February 23, 2009 by Corinne

Social Studies 9
i did my chart and i have filled almost everything but 3 questions. Please help me on these 3 questions. 1. What is the role of law for a republic? 2. What is the role of law for an absolute monarchy? 3. What is the role of law for constititional monarchy? Thanks:)
October 15, 2012 by Sarahh

Physics - Coulombs Law
Two identical objects have charges 6.0*10^-6 and -2.0*10^-6 respectively. When placed a distance d apart, their force of attraction is 2.0N If the objects touched together, then moved to a distance of separation of 2d, what will be the new force between them. Ans: I tried the ...
October 17, 2010 by Anonymous

Law
1. The Eighth Amendment to the U.S. Constitution prohibits what two types of punishment? A. Harsh, typical B. Cruel, unusual C. Cruel, justified D. Cruel, mean is it B 2. What are the two types of mistake in respect to criminal law? A. Mistake of law and mistake of fact B. ...
September 23, 2013 by Amy

physical geography
Would like you to complete Exercise problems #30 it has two papes.Physical Geography Laboratory Manual By darrel Hess Friday, April 17, 2012 at 4:57pm by Lephaiis Baker
April 17, 2012 by lephaiis

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

english
how about this for starters? The shift from being a high school student to a college student can be both pleasurable and discomforting at the same time for the simple fact that college is nothing like high school. In college there are no “boundaries”, telling the students what...
January 25, 2010 by layla

Economic
1. The principle that states that the more you have of something, the less satisfaction you will get from an additional unit is the a. law of demand. c. law of equilibrium. b. law of diminishing marginal utility. d. price elasticity. 2. Demand for one particular brand of ...
March 31, 2010 by Candace

Chemistry
Please let me know how you would approach the gas law problem. Here goes: If the pressure exerted on the gas in a weather ballon decreases from 1.01 atm to 0.562 atm as it rises. By what factor will the volume of the gas in the ballon increase as it rises? I can't seem to ...
November 21, 2010 by Cliff

Law
1. why is employment based on contract law? 2. where did the idea of 'circle sentencing come from?
June 24, 2011 by jason

business law
California passed a law prohibiting any transporting of nuclear waste
October 1, 2011 by Anonymous

business law
California passed a law prohibiting any transporting of nuclear waste
October 1, 2011 by Anonymous

Law
I need to pick a current event from 2010-2013 that involves a law. Can you help me?
January 30, 2013 by Vicky

Introduction to the Criminal Justice System
How does constitutional law affect the development of the criminal code? (What I have)is research on: I have researched the constitutional law and the criminal code, but I can not find where the constitutional law affects the criminal code. For one, the criminal code cannot ...
November 11, 2006 by Jo Ann

college chem
N2O4 --->2NO2 a 1 liter flask is charged with .4 mols of N2O4. at equilibrium at 373 k, .0055 mols of N2O4 remain. what is the Kc for this reaction? please explain to me how to get the rate law for this and solving
March 9, 2010 by josh

Law
How will law affect health care and human service organizations?
October 8, 2007 by Michelle

Business Law
Why is it important to distinguish between the U.S. Constitution and statutory law?
April 21, 2009 by Tara

world history
What type of law is based on the Roman law code?
April 27, 2010 by Jackson

Ethic and law
What is the relationship between ethics and the law in the field of counseling?
September 11, 2011 by lisa

business law
Briefly discuss the usefulness of studying commercial law
September 21, 2011 by Anonymous

Economics
Define the Law of Demand and the Law of Supply. Give an example for each.
November 23, 2011 by Student1

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