Search: Chemical Engineering: Raoult's Law

Number of results: 13,187

Chemical Engineering: Raoult's Law
n = 100
Sunday, November 18, 2012 at 8:36am by austin

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 ...
Sunday, November 18, 2012 at 8:36am by Silas

Chemistry: Raoult's Law
Some of th e following might help you: http://search.yahoo.com/search?fr=mcafee&p=Raoult%27s+Law Sra
Thursday, September 2, 2010 at 2:18pm by SraJMcGin

College Chemistry
Isn't this Raoult's law? http://www.ausetute.com.au/raoult.html Pressure= 5.4/(5.4+.39) * 41torr
Friday, November 19, 2010 at 9:18am by bobpursley

Chemistry
Wouldnt you just multipy each vapor pressure x mole fraction of the component, then for total, add them up? See Raoult's law of partial pressures. http://en.wikipedia.org/wiki/Raoult's_law
Wednesday, December 19, 2007 at 5:43am by bobpursley

college
Dalton's Law: in a mixture of gases, the total pressure is equal to the sum of partial pressures. Commit that to memory, now. There is a corollary to this law, about the mole ratios, you need to commit that one also. I would be shocked if it is not in your text (Raoult'...
Saturday, November 13, 2010 at 9:55am by bobpursley

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...
Tuesday, August 7, 2007 at 5:10am by Chris

chem
The concentration unit used in Raoult's Law calculations is???
Thursday, February 7, 2008 at 12:48am by miley

chemistry
Since this is not my area of expertise, I searched Google under the key words "Raoult's law" to get these possible sources: http://en.wikipedia.org/wiki/Raoult's_law http://en.wikipedia.org/wiki/Vapor_pressure http://www.chemguide.co.uk/physical/phaseeqia/...
Friday, March 14, 2008 at 9:30pm by PsyDAG

Chemistry
how do i find which substances are most likely to obey raoult's law?
Tuesday, February 2, 2010 at 8:24pm by Anonymous

Chemical engineeing
Can someone help me with online exam ( fundamental of chemical engineering class ) ? Please eamil me ( davd_jo(at)(ya h o o )dot (com ) I'll offer money
Monday, May 6, 2013 at 5:45pm by Dave

Science
If you cannot figure this out on your own then you do not need to be a Chemical Engineer. Pick a different major. Question 2.2.10 Basic Principles and Calculations In Chemical Engineering
Saturday, August 25, 2012 at 4:37pm by anonymous

Chemistry: Raoult's Law
i got the mole fraction of cyclohexane in the solution but that isn't what it wants and I don't know exactly what the question is asking for. Can someone please explain to me how to do this problem?
Thursday, September 2, 2010 at 2:18pm by Sar

chemistry
Here is a chemical equation: CH4 + O2 ¨ CO2 + H2O 1. Balance this chemical equation. State what type of chemical reaction this is. What will accompany the products as a result of this reaction? Discuss how your balanced chemical equation agrees with the law of ...
Monday, January 9, 2012 at 6:13pm by help

CHEMISTRY
Here is a chemical equation: CH4 + O2 ¨ CO2 + H2O 1. Balance this chemical equation. 2.State what type of chemical reaction this is. 3.What will accompany the products as a result of this reaction? 4.Discuss how your balanced chemical equation agrees with the law of ...
Monday, January 9, 2012 at 6:29pm by PLEASE HELP!!!!

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 ?
Friday, February 8, 2008 at 12:46am by Kim

CHEMISTRY
The chemical and engineering properties of cement are very important in the construction industries. One of the four principle chemical compounds in Portland cement in tricalcium silicate, 3CaO.SiO2. Calculate its molecular/formula weight?
Tuesday, April 5, 2011 at 3:54am by Taynell

chemistry
Another “grand challenge” for engineering is managing the nitrogen cycle. Use the nature of the chemical bond in diatomic nitrogen to explain why any management is needed for this biogeochemical cycle. With so much nitrogen available in the atmosphere, why are ...
Thursday, February 3, 2011 at 7:32pm by Jazmin

math - please help me
65 chemical engineering students are from urban/suburban backgrounds. (Success is defined as a C or better in the course.) 52 of the 65 students succeeded. Another 55 students were from rural backgrounds; 30 of these students succeeded. A Is there good evidence that the ...
Monday, April 8, 2013 at 12:12am by Sejul

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?
Tuesday, December 18, 2007 at 6:29am by anonymous

Chemical Engineering
I got the same answer
Sunday, November 7, 2010 at 2:36pm by Alan

engineering
Civil engineering means the constructive based engineering
Sunday, August 21, 2011 at 2:01am by Surya

Chemistry
According to Raoult's Law, Psolution = XsolventPsolvent 18.6mmHg = X(H2O)*P(H2O at 25o) Look up the water vapor pressure at 25, substitute above, and solve for X(H2O).
Monday, October 27, 2008 at 6:14pm by GK

the big idea of energy
The big idea of energy is about the chemical reaction that takes place. According to the law of conservation of mass, “During an ordinary chemical change, there is no detectable increase or decrease in the quantity of matter.” Also, The Law of Conservation of Energy ...
Tuesday, December 5, 2006 at 2:18pm by Asha

chemistry
For 1 and 2, I'll bet you can find the equations in your text under Raoult's Law. For #3, use delta T = Kb*m. You will need to look up Kb for benzene (look under boiling point elevation constant).
Saturday, January 24, 2009 at 10:09pm by DrBob222

CHEMISTRY
Read this: http://en.wikipedia.org/wiki/Raoult%27s_law
Friday, October 15, 2010 at 5:18am by bobpursley

Math (Statistics)
Five college engineering students are choosing specialized fileds of engineering to study. Each student is allowed to select 1 field. The available fields are Electrical Engineering (EE), Mechanical Engineering (ME), and Computer Engineering (CE). If the second student does ...
Thursday, August 4, 2011 at 6:02pm by Michelle

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?
Sunday, October 30, 2011 at 8:34am by Ethio

Fundamental Of Chemical Engineering
They didn't give us an equation but I write this, I don't now if it's right or not. SO3 (g) +H2O (l) → H2SO4 (l)
Saturday, December 15, 2012 at 11:30am by NONO

Chemistry
Hess's law _____. A.) makes it possible to calculate H for complicated chemical reactions B.) states that when you reverse a chemical equation, the sign of H does not change C.) determines the way a calorimeter works D.) describes the vaporization of solids Please help - I...
Monday, March 4, 2013 at 2:21pm by Jack

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 ...
Wednesday, January 31, 2007 at 4:44pm by Belinda

vocab
bland, filmed interview, medicine, civil engineering, law.
Saturday, February 23, 2008 at 5:54am by drwls

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.
Monday, January 25, 2010 at 6:29pm by Saira

Fundamental Of Chemical Engineering
why don't you at least provide the balanced equation used for industrial production of H2SO4? In doing so, you will have almost solved the problem.
Saturday, December 15, 2012 at 11:30am by Steve

Chemistry
1. Hess's law _____. A.) makes it possible to calculate H for complicated chemical reactions B.) states that when you reverse a chemical equation, the sign of H does not change C.) determines the way a calorimeter works D.) describes the vaporization of solids Please help...
Monday, March 4, 2013 at 11:52am by Jack

law-major help?
What do you want as a lawyer to know? Law? Morals? Ethics? Medicine? Engineering? Literature? History? Human Behavior (Psychology)? The purpose of college is to become educated. Focus on an education. AFter that, consider being a lawyer if your inclination is that. Many ...
Wednesday, November 5, 2008 at 11:52pm by bobpursley

Chemistry
I would approach this problem by assuming a convenient sample of the gas (say 100 g), convert each to grams, then to moles, then determine the mole fraction of PF5. Use Raoult's Law to finish. P = XPo By the way, it helps us if you DON'T use different names for posting...
Wednesday, January 20, 2010 at 7:18pm by DrBob222

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...?
Tuesday, February 2, 2010 at 11:05pm by Anonymous

Social Studies
Has society become too organized? Does free will exsist? What role does chemical engineering play in society?
Tuesday, May 27, 2008 at 9:41pm by Ashten

science
(5 points) Score 1. Here is a chemical equation: CH4 + O2 → CO2 + H2O • Balance this chemical equation. • State what type of chemical reaction this is. • What will accompany the products as a result of this reaction? • Discuss how your balanced ...
Tuesday, January 11, 2011 at 9:51pm by cman

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..!
Saturday, April 18, 2009 at 1:21pm by humaira

Chemistry
1. Hess's law ____. (1 point) (1 pt) makes it possible to calculate H for complicated chemical reactions (0 pts) states that when you reverse a chemical equation, the sign of H does not change. (0 pts) determines the way a calorimeter works (0 pts) describes the ...
Monday, March 4, 2013 at 11:52am by cupcake

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.
Tuesday, March 6, 2007 at 10:55pm by John

engineering
How has hydraulic engineering altered local and regional environments?
Sunday, July 31, 2011 at 12:18pm by Sabrina

AP Chemistry
Yes, it will ALWAYS. Why? Think Raoult's Law. p = X*Po and since X of the solvent will ALWAYS be lower than 1 (when mixed with the solute) so the partial pressure must always be lower than Po, the normal vapor pressure of the pure solvent.
Saturday, November 21, 2009 at 6:33pm by DrBob222

engineering
How is bacteria used in genetic engineering?
Sunday, May 8, 2011 at 11:57pm by john

Career Plans
Thanks, so for engineering, what type of math would have to be involved. Does that site list types of engineering courses?
Thursday, January 27, 2011 at 6:36pm by Anonymous

biology
developing new technology finding new medications treating illnesses engineering roads, dams, buildings classifying plants and animals studying the chemical makeup of substances
Wednesday, September 23, 2009 at 5:36pm by Ms. Sue

chemistry
Chemical property becomes evident AFTER a chemical reaction has occured. For example iron has the potential to rust given the right conditions. This is a chemical property. That is a chemical property. While a chemical reaction would be like: Iron rusted.
Wednesday, January 7, 2009 at 8:35pm by =)

engineering
engineering of public works types of projects such as roads, water systems, bridges, waterways, levees, dams ....
Sunday, August 21, 2011 at 2:01am by Damon

engineering
Why people need to be engineering
Tuesday, April 3, 2012 at 8:21pm by Anonymous

Chemistry 130
It depends on what you mean. If you mean a solution not water based, for instance an organic dissolved in an organic substance, neither of which is soluble in water, the answer is yes, freezing point depression is a colligative property associated with vapor pressure ...
Wednesday, October 7, 2009 at 12:07pm by bobpursley

MATH
At McLeod University, thirty percent of the students are in Engineering. Forty percent of Engineering students study Probabilistic Systems, and sixty percent of the students studying Probabilistic Systems are in Engineering. What percentage of students at McLeod are either in ...
Thursday, October 6, 2011 at 8:22pm by Sarah

World History
How were the Byzantine's Engineering geniuses? Take two or three of their engineering feats and discuss how these marvels led to the empire's overall success.
Wednesday, April 3, 2013 at 8:45pm by Gregory

biology
Which of the following is true about the relationship between energy and chemical reactions? Activation energy is required for a chemical reaction to occur. Activitation energy is not necessary in a chemical reaction which releases energy. Chemical bonds are always broken by ...
Thursday, April 15, 2010 at 11:40am by ballamoney1

Changes in Matter
Which of the following geological changes are physical changes and which are chemical changes? a)formation of a limestone cave b)creation of a canyon by a river c)wearing of rocks by wave action d)destruction of lakes by acid rain e)heaving of the ground by ice formation a = ...
Monday, March 22, 2010 at 7:26pm by Sara

check american government
The constitution and the amendments thereto are passed by the required majorities, and are binding law. The law of this land is that the law is the law, an it is is own justification. Promises are not law.
Sunday, October 26, 2008 at 8:31pm by bobpursley

biomedical engineering
my major for college is biomedical engineering and i was looking athe salaries and they were around 50K to 80K. and i was wondering if there is a highest level you can get to by doing biomedical engineering where the salary increases to 100 thousands dollars or more. For ...
Tuesday, May 22, 2007 at 1:22am by dave

chem
How does the law of conservation of matter apply to chemical reactions?
Wednesday, March 12, 2008 at 6:31pm by Anonymous

Chemistry
Describe how you can show that a chemical reaction adhers to the law of conservation of mass. Chemical reaction: magnesium hydroxide added to phosphoric acid produces magnesium phosphate and water. Find the mass percentage of each compound as well as the total mass of ...
Wednesday, December 10, 2008 at 9:51pm by Jessica

"Brave New World"
I am writing an essay after reading the first 3 chapters of "Brave New World" about how genetic engineering produced the society. What are the motives behind genetic engineering according to Huxley? Has genetic engineering "Improved" lives of the peopel in...
Monday, April 28, 2008 at 10:21am by Christian

chemistry
Classify the following properties of ozones as physical or chemical: 1.bluish color 2.pungent odor 3.reactive towards oxygen 4.decomposes to oxygen on exposure to ultraviolet light 5.it is a gas Is this correct? 1.chemical 2.physical 3.chemical 4.chemical 5.phsical
Wednesday, February 20, 2008 at 6:36pm by lizzie

science
The staement is correct. A new chemical compound is formed in a chemical reaction, and all chemical and physical properties change
Saturday, October 6, 2007 at 11:19pm by drwls

engineering
what is civil engineering?
Sunday, August 21, 2011 at 2:01am by lee

engineering
I need help with homework in Fire Engineering. What flame height would result from a 3 megawatt fire located in the corner of a compartment? This help will be appreciated. Thanks.
Friday, November 4, 2011 at 5:33pm by Deborah

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 ...
Tuesday, September 14, 2010 at 6:57pm by Tim

engineering
I need help with my Fire Engineering homework. What is the heat release rate of a flame measuring five feet in height assuming the flame is in the center of a room?
Friday, November 4, 2011 at 5:31pm by Deborah

Chemistry
can anyone explain how does the balanced chemical equation show the law of conservation of mass?
Sunday, January 6, 2008 at 5:14pm by John

chemistry
You react chemical A with chemical B to make one product. It takes 100 grams of chemical A to react completely with 20 grams of chemical B. What is true about the chemical properties of the product? a. the properties are more like those of chemical A b. the properties are more...
Monday, February 13, 2012 at 7:06pm by student

Fundamental Of Chemical Engineering
OK what about if we have all this equations: H2SO4→ so3+H2O SO3→ SO2+1\2O2 SO2→ S+O2
Saturday, December 15, 2012 at 11:30am by NONO

Engineering Physics
Engineering Physics? I will be happy to critique your thinking or work.
Wednesday, September 16, 2009 at 11:36am by bobpursley

chemistry
Of course. The rate law is determined experimentally and has nothing to do with the coefficients in the balanced chemical equation.
Tuesday, April 8, 2008 at 10:11pm by DrBob222

Fundamental Of Chemical Engineering
If a sulfuric acid plant is to produce 10 ton/day of 98% sulfuric acid, How much sulfur is needed, how much air is required and how much water is used?
Saturday, December 15, 2012 at 11:30am by NONO

science chemical changes
Two examples of helpful chemical changes and 2 examples of harmful chemical change. For each chemical change, an example of a "tell-tale" sign.
Monday, November 6, 2006 at 6:59pm by denean

food engineeirng
i intend to take the course of food engineering.may i noe tat is food engineering more suitable to bio or physics students?
Monday, February 28, 2011 at 11:25am by chin

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
Monday, April 2, 2012 at 8:26pm by Charlette

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
Thursday, March 8, 2012 at 4:22am by Johana

statistics
At a certain college, there were 400 science majors, 100 engineering majors, and 600 business majors. If one student was selected at random, the probbility that they are an engineering major is
Saturday, October 1, 2011 at 10:47am by Diva99

statistics
at a certain college, there were 700 science majors,100 engineering majors and 500 business majors. if one student was selected at random, the probability that they are an engineering major is?
Tuesday, September 27, 2011 at 12:15pm by carol

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.
Thursday, September 2, 2010 at 6:32pm by kash

world history
Explain the importance of Roman technology and engineering? Cover two separate kinds of Roman technology and engineering.
Friday, February 8, 2013 at 3:10pm by Evs

Government Law question
What kind of law is it when judges make the law by their decisions on the bench? ___ Law
Monday, January 14, 2013 at 6:15pm by Allyson

chemistry
for the chemical reaction A+B= C+D, the following experimental data were taken to determine the ratelaw equation at 300K. determine the rate law for the chemical reaction. fromthe experiment data i found out the exponetial value... but 300k part confuses me. the equation i got...
Monday, July 18, 2011 at 10:21pm by priya

Changes in Matter
Which of the following kitchen activities are physical changes, and which are chemical changes? a)cooking bacon-chemical b)making icing-physical c)baking a cake-chemical d)using oven cleaner-chemical e)making whipped cream-physical Please correct me if I'm wrong, thanks
Monday, March 22, 2010 at 7:16pm by Sara

Math Lit
One 250mg tablet is made up of chemical A , B, ,C in a ratio 3:2:5. The Pharmacist Has 60mg of chemical B left. How much of Chemical A and C does she need if she uses 60mg of B?
Thursday, February 9, 2012 at 7:27pm by Shanna

Science
We did a experiment in class to recognize chemical change. I don't really get this question: Identify the combinations of chemicals in which chemical changes occurred. If the chemical changes occured in all of the combinations, then what would be a good answer? I get the ...
Tuesday, March 23, 2010 at 10:30pm by Sara

maths
5. There are two groups of subjects one of which contains 5 science subjects and 3 engineering subjects and the other consists of 3 science and 5 engineering subjects. An unbiased die is cast. If the number 3 or number 5 turns up, a subject is selected at random from the first...
Friday, December 28, 2012 at 4:00am by Anonymous

chemistry
How is it possible for a chemical rxn to be highly spontaneous and have a negative entropy value? Isn't this inconsistent with the 2nd law of thermodynamics?
Friday, April 13, 2012 at 10:56am by Anonymous

chemistry
Physical changes are those that do not involve a change in chemical composition. Some examples are changing the shape of an object, the size of an object, changing its color, its volume, its mass, freezing or boiling water, changing water from liquid to gas, etc. Chemical ...
Wednesday, January 19, 2011 at 11:39am by DrBob222

Chemical Engineering
How much acetone liquid (in mls) is required to produce a vapor concentration of 200 ppm (parts per million) by volume in a room of dimensions 3 x 4 x 10 meters? The temperature is 25oC and the pressure is 1 atm. The following physical property data are available for acetone: ...
Tuesday, September 7, 2010 at 4:24pm by jhon

chem expirement!
You are required to design an experiment to test Hess's law using the combustion of ethanol. Write a brief design for this experiment. What I wrote as my answer: Hess’ Law: is the algebraic addition of chemical equations yields a net equation whose enthalpy of ...
Thursday, May 17, 2007 at 12:28pm by rob

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 ...
Friday, February 18, 2011 at 7:50pm by silver

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? ...
Wednesday, August 15, 2007 at 4:40am by bugalo

chemistry
A chemical is placed in a beaker containing 20 g of soil and 500 mL of water. At equilibrium, the chemical is found in the soil at a concentration of 100 mg/kg of soil. The equilibrium concentration of this same chemical in the water is 250 µg/L. Calculate the partition ...
Friday, January 21, 2011 at 11:47pm by Jazmin

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 ...
Friday, March 14, 2008 at 9:30pm by thanh

computer
is a discipline that combines both Electrical Engineering and Computer Science.[1] Computer engineers usually have training in electrical engineering, software design and hardware-software integration instead of only software engineering or electrical engineering. Computer ...
Thursday, May 7, 2009 at 3:22pm by Anonymous

about Engineering
Electronic and Communication Engineering is mainly Mathematical analysis, implemented in practical circuits. You have to understand higher forms of math, and think in those terms. You have to understand the imperfect models used for systems analysis. You have to understand ...
Thursday, May 24, 2007 at 6:41am by bobpursley

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 ...
Monday, June 2, 2008 at 8:45pm by Tiff

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