Search: At what temperature does benzene boil when the external pressure is 450torr?

Number of results: 10,922

problem
Benzene has a heat of vaporization of 30.72 kj/mol and a normal boiling point of 80.1. At what temperature does benzene boil when the external pressure is 480 torr?
Sunday, July 17, 2011 at 10:37pm by Anonymous

science
benzene has a heat of vaporization of 30.72kj/mol and a normal boiling point of 80.1c. at what temperature does benzene boil when the external pressure is 445 torr
Wednesday, December 2, 2009 at 12:00pm by Bryan

Chem.
Benzene has a heat of vaporization of 30.72 kj/mol and a normal boiling point of 80.1 degrees celcius. At what temperature does Benzene boil when the external pressure is 440 torr?
Wednesday, February 10, 2010 at 3:51am by Joseph

Chemistry
Benzene has a heat of vaporization of 30.72 kj/mol and a normal boiling point of 80.1 degrees celsius. At what temperature does benzene boil when the external pressure is 480 torr? Can someone show me an equation and how to solve this?
Tuesday, July 19, 2011 at 2:38pm by Anonymous

chemistry
Benzene has a heat of vaporization of 30.72kJ/mol and a normal boiling point of 80.1 C. At what temperature does benzene boil when the external pressure is 490 ? I think I have the equation setup, but I can't figure out how to solve for T2..please help
Sunday, July 10, 2011 at 9:31pm by hannah

chemistry
Benzene has a heat of vaporization of 30.72kJ/mol and a normal boiling point of 80.1 degrees C. At what temperature does benzene boil when the external pressure is 405 torr? how do i go about answering this question? i don't know where to start. am i supposed to use the ...
Sunday, February 7, 2010 at 8:45pm by Karen

chemistry
At what temperature does benzene boil when the external pressure is 480 torr?
Sunday, September 7, 2008 at 1:34pm by Anjali

chemistry
Benzene has a heat of vaporization of 30.72kj/mol and a normal boiling point of 80.1 C . At what temperature does benzene boil when the external pressure is 445 ? This is how I am solving this problem, but when I enter the answer it says im wrong. Can someone help with the ...
Saturday, January 24, 2009 at 10:36pm by confused

chemistry
Benzene has a heat of vaporization of 30.72kj/mol and a normal boiling point of 80.1 C . At what temperature does benzene boil when the external pressure is 410 ? This is how I am solving this problem, ln(415/760)= (30720/8.314)*(1/80.1 - 1/T2) It is asking to answer using two...
Sunday, January 25, 2009 at 8:41pm by Lost

Chemistry
Benzene (C6H6) is an organic compound that boils at 80.1°C. If 100.0 grams of liquid benzene at 18.5°C is given 16.88 kJ of energy, what is the final temperature (in °C) of the benzene? The ΔHvaporization for benzene = 31.0 kJ/mol and the specific heat of ...
Friday, April 15, 2011 at 2:55pm by Laura

chemist
If 50.0 g of benzene, C6H6, at 25.0 °C absorbs 2.71 kJ of energy in the form of heat, what is the final temperature of the benzene? The specific heat capacity of benzene is 1.72 J/g ⋅K.
Wednesday, December 26, 2012 at 2:35pm by gsdgsd

Chem.
Benzene has a heat of vaporization of 30.72 kj/mol and a normal boiling point of 80.1 degrees celcius. At what temperature does Benzene boil when the external pressure is 440 torr? Since...I didn't get the right answer. I'll just show my work and see if anyone can help...
Wednesday, February 10, 2010 at 6:14pm by Joseph

Separation process
Oil used to absorb benzene from gas is to be stripped with steam at P = 1atm to recover the benzene.Equlibrium at the operating temperature is approximated using Henry's Law.When the oil contains 10%mol of benzene,the oil's partial pressure is 5.07kPa.The oil is ...
Friday, March 15, 2013 at 4:23am by Meenaakshi

chemistry
Why would benzene boil at 100C instead of 80C?
Saturday, October 13, 2012 at 9:14am by shelwa

Chemistry
At a certain temperature the vapor pressure of pure benzene is measured to be 322. torr . Suppose a solution is prepared by mixing 138.g of benzene and 91.2g of heptane . Calculate the partial pressure of benzene vapor above this solution. 3 sig figs! Steps/equations are ...
Wednesday, April 11, 2012 at 4:05am by Elizabeth L.

Organic Chem
I have a question on how to distinguish cyclohexane from benzene through lab tests i.e. chemical reactions (except for burning and observing the amount of soot produced, because it is not a very conclusive test) So far the only thing I could think of is adding halogens to both...
Friday, January 28, 2011 at 11:36am by Hayyley

Honors chemistry
You need to boil 307 g of water (specific heat = 4.184) so you can make a cup of your favorite drink. If room temperature is 20.15 oC, how much heat is needed to boil the water?
Sunday, September 23, 2012 at 8:52pm by Claire

organic chem
Thinking of using Benzene with HNO3/H2SO4 to make Benzene with NO2 then adding Sn/Hcl/NaOH to make Benzene with NH2 then adding NaNO2/HCl/ (2) H20 to make Benzene with benzene with OH attaching at the 1, 3 position. what do you think?
Tuesday, April 26, 2011 at 5:14am by lauder

Chemistry
At the melting point of benzene, the DH of fusion is 9.95 kJ/mol and the DS of fusion is 35.7 J/K.mol. What is the temperature at which benzene melts?
Monday, December 6, 2010 at 2:29pm by Ashley

Organic Chemistry
Hi, I have a question on how to distinguish cyclohexane from benzene through lab tests i.e. chemical reactions (except for burning and observing the amount of soot produced, because it is not a very conclusive test) So far the only thing I could think of is adding halogens to ...
Friday, January 28, 2011 at 4:54am by Hayyley

science
how do you make 5-Pentyl-1,3-benzenediol from just benzene? 1.Benzene + Br2 +FeBr3-->Benzene-Br??
Tuesday, April 26, 2011 at 2:37pm by Sandy

organic chem
Use Benzene with HNO3/H2SO4 to make Benzene with NO2 then adding Sn/Hcl/NaOH to make Benzene with NH2 then adding NaNO2/HCl to make benzene with N=N:cl- then HBrH4 to Make Benzene with F. Then repeating the addition of HNO3/HsSO4 to add NO2 on twice??????????????????
Tuesday, April 26, 2011 at 5:15am by lauder

Chemistry
How many grams of steam at 100 degrees celcuis would be required to raise the temperature of 35.8 g solid benzene (C6H6) from 5.5 - 45.0 degrees celcius. (the melting point of benzene is 5.5 degrees celcius, delta H fusion for benzene is 9.87 kj/mol, specific heat for benzen ...
Friday, February 26, 2010 at 11:00am by Anonymous

Chemistry! Test tomorrow, pls help !
This is a stoichiometry problem with an extra step of % thrown into the mix. C6H6 + Br2 ==> C6H5Br + HBr. mols bromobenzene in 50 g is 50/molar mass bromobenzene. Now you wan to convert mols bromobenzene to mols benzene. Since the equation shows you it is 1 mol benzene ...
Thursday, October 4, 2012 at 10:03pm by DrBob222

chemistry
At a given temperature, you have a mixture of benzene (vapor pressure of pure benzene = 745 torr) and toluene (vapor pressure of pure toluene = 290 torr). The mole fraction of benzene in the vapor above the solution is 0.590. Assuming ideal behavior, calculate the mole ...
Wednesday, February 22, 2012 at 4:48pm by renee

chemistry
Benzene freezes at 5.45oC. The Kf for benzene is - 5.07 oC/m. What would be the freezing point of a 0.210m solution of octane in benzene a) 1.06oC b) 4.39oC c) 6.51oC d) 10.52oC e) 5.80oC
Friday, February 3, 2012 at 4:29pm by tobe

Chemistry
19.6 g of biphenyl /154.21 g of biphenyl*mol-1= moles of biphenyl 25.1 g of benzene/78.11 g of benzene *mol-1= moles of benzene Since at 25°C, the vapor pressure of pure benzene is 100.84 torr, then the pressure must be equal to the mole fraction of benzene to the total ...
Tuesday, January 29, 2013 at 9:23pm by Devron

science
Yes, she's right. What temperature does it boil at for Fahrenheit?
Thursday, June 17, 2010 at 3:56am by Jen

science(chem)
If it is to boil, start counting when the solution starts to boil. If it says heat for 1/2 hour and some temperature is specified, (such as a real T as in 50 C, then start counting when the T reaches 50 or so but a moderate T heat up to about 40 or 50 and count about 1/2 hour).
Thursday, April 10, 2008 at 12:00am by DrBob222

Math
Right they are less than a mile. But SLC is more than 1056 miles high, so water boils at a lower temperature there than 100 C. About what temperature does water boil in SLC?
Thursday, February 5, 2009 at 6:58pm by Ms. Sue

***CHEMISTRY***
Doesn't water boil at a constant temperature, 100C?
Sunday, March 8, 2009 at 5:05pm by bobpursley

Math
a 25.00 gram sample is placed in a graduated cylinder and then the cylinder is filled to the 50.0 mL mark with benzene. the mass of benzene and solid together is 58.80 gram. assuming that the solid is insoluble in benzene and that the density of benzene is .880 g/cm^3 , ...
Monday, August 23, 2010 at 1:49am by Anne

Chemistry
Benzene has a vapor pressure of 100.0 Torr at 26°C. A nonvolatile, nonelectrolyte compound was added to 0.309 mol benzene at 26°C and the vapor pressure of the benzene in the solution decreased to 60.0 Torr. What amount (in moles) of solute molecules were added to the ...
Monday, February 15, 2010 at 4:19pm by Angelica

Chemistry
What is the freezing point of a solution of 1.17g of 1-naphthol, C10H8O, dissolved in 2.00ml of benzene at 20 degrees C? The density of benzene at 20 degrees C is 876g/ml. Kf for benzene is 5.12 degrees C/m, and benzene's normal freezing point is 5.53 degrees C.
Monday, April 4, 2011 at 3:36pm by Jake

Chemistry
Calculate the number of joules required to melt 57.4g of benzene at 5.5 degrees celsius? The heat of fusion for benzene is 9.87 KJ/mol and specific heat for liquid benzene is 1.63 J/g*deg)
Friday, February 19, 2010 at 12:39pm by Jake

Chemistry
at which temperature will water boil when the external pressure is 30 kPa?
Sunday, January 13, 2013 at 8:29pm by Anonymous

chemistry
Yes, use the Clausius-Clapeyron equation (capitals PLEASE). At the boiling point, the vapor pressure of benzene is 760 torr. The other set of points is 405 torr and x temperature. Solve for x temperature.
Sunday, February 7, 2010 at 8:45pm by DrBob222

science
Does water with salt boils faster than plain water Yes, salt increases the waters boiling point and therefore a higher temperature is needed for the water to boil. Salt does, indeed, increase the boiling point of water due to the salt but it will take longer for the water to ...
Wednesday, January 31, 2007 at 9:47pm by javier

Chemistry
When 100.0 g of an unknown nonelectrolyte is dissolved in 500.0 g of benzene, C6H6, the solution boils at 82.9°C. Calculate the molecular weight (molar mass) of the unknown material. Kb for benzene is 2.53°C/m and the boiling point of pure benzene is 80.1°C?
Sunday, May 5, 2013 at 2:04am by ramire2

CHEMISTRY
45) George is making spaghetti for dinner. He places 4.01 kg of water in a pan and brings it to a boil. Before adding the pasta, he adds 58 g of table salt to the water and again brings it to a boil. The temperature of the salty, boiling water is _ _ _ _ __ _ _ _ _°C. It ...
Sunday, September 26, 2010 at 6:46pm by hjw

Chemistry
1) Benzene freezes at 5.45 degrees celsius. The Kf for benzene is -5.07C/m. What would be the freezing point of a 0.210m solution of octane in benzene? I am not sure how to start this. I know the equation for freezing point is Kfp * m solute.
Sunday, February 12, 2012 at 5:38pm by Hannah

chemistry
15% benzene means 15g benzene/(15g benzene + 85 g octane). 15/molar mass benzene = mols benzene. 85/molar mass octane = mols octane. Calculate Xbenzene Calculate Xoctane. Then pBen = XBen*Pobenzene and pOct = XOct*Pooctane Then Ptotal = Pbenzene + Poctane
Friday, September 14, 2012 at 9:18pm by DrBob222

Chemistry
A sample of benzene, C6H6, weighing 3.51 g was burned in an excess of oxygen in a bomb calorimeter. The temperature of the calorimeter rose from 25.00 C to 37.18 C. If the heat capacity of the calorimeter is 12.05 kJ/K, what is the molar energy of combustion for benzene? Also...
Wednesday, March 17, 2010 at 11:32pm by Marie

math 3rd grade
1. At what Celsius temperature does water boil. 2. How many days are in the month of August.
Wednesday, January 23, 2008 at 10:26pm by LaNoria

ap chemistry
Benzene is a hydrocarbon that is commonly used as a commercial solvent. However, it is carcinogenic; i.e., accumulations in the body can cause cancer. What is the vapor pressure of benzene at 29C? The normal boiling point of benzene is 80.0C and its molar heat of ...
Monday, April 15, 2013 at 6:33pm by cheri

Chemistry
First you need to know the heat of combustion for benzene, preferably in kJ/mol. Then determine moles benzene in 10.0 g, and ??kJ/mol x mols benzene = xx kJ
Thursday, May 20, 2010 at 4:35pm by DrBob222

chemistry
Which of the following sets of solute and solvents will make a homogeneous solution? (naphthalene is a non-polar organic molecule) 1. Water and benzene 2. Benzene and ammonium nitrate 3. Benzene and naphthalene 4. Water and naphthalene
Tuesday, November 29, 2011 at 3:14am by katie

Chemistry
**When 0.187 g of benzene,C6H6, is burned in a bomb calorimeter, the surrounding water bath rises in temperature by 7.48 C. ** Assuming that the bath contains 250.0 g of water and that the calorimeter itself absorbs a negligible amount of heat, calculate combustion energies (...
Wednesday, February 17, 2010 at 1:50pm by Julie

Chemistry
What is the mole fraction of benzene C6H6 in the VAPOR PHASE from a solution consisting of a mixture of benzene and n-hexame ch3(ch2)4ch3 at 27celsius, if the total pressure above the solution is 135.2 torr? The vapor pressures of benzene and n-hexame at 27 celsius are 103 and...
Sunday, April 24, 2011 at 1:54am by Jude

Chemistry
An aqueous solution of NaCl freezes at -1.6ºC. At what temperature will it boil? Given that K(b) for water is 0.52 deg m^-1.
Wednesday, April 17, 2013 at 2:43am by steph

Chemistry H
It will boil at that temperature at which the vapor pressure of the H2O is 30 kPa. Without a graph/table I can't help you.
Sunday, February 24, 2013 at 12:50am by DrBob222

Chemistry
How much boiling water would you need in order to raise the bath to body temperature (about 37)? Assume that no heat is transferred to the surrounding environment. Imagine that your water heater has broken, but you want to take a bath. You fill your bathtub with 25kg of room-...
Thursday, November 4, 2010 at 8:35pm by Bella

Chemistry
Imagine that your water heater has broken, but you want to take a bath. You fill your bathtub with 25kg of room-temperature water (about 25C). You figure that you can boil water on the stove and pour it into the bath to raise the temperature. How much boiling water would you ...
Wednesday, February 17, 2010 at 1:19pm by Anonymous

chem
Pentane will boil the lowest, hexane next (because the molecular weight is slightly higher), and hexanol will boil the highest because of hydrogen bonding as well as being the heaviest..
Sunday, March 29, 2009 at 11:06pm by DrBob222

Chemistry
Toluene, C6H5CH3, is a liquid similar to benzene, C6H6. It is the starting material for other substances, including trinitrotoluene (TNT). the molality of toluene in a solution that contains 26.2 g of toluene and 132 g of benzene. Calculate the molar fraction of toluene and ...
Thursday, March 29, 2012 at 5:53pm by MJ

Chemistry
How much boiling water would you need in order to raise the bath to body temperature (about 37)? Assume that no heat is transferred to the surrounding environment. Imagine that your water heater has broken, but you want to take a bath. You fill your bathtub with 25 of room-...
Thursday, November 4, 2010 at 4:06pm by Bella

general chemisty
Calculate the freezing point of a solution of 20.0 g methyl salicylate, C7H6O2, dissolved in 800 g of benzene, C6H6. Kf for benzene is 5.10°C /m and the freezing point is 5.50°C for benzene. A) -1.05°C B) 1.05°C C) 4.45°C D) 6.54°C
Sunday, September 26, 2010 at 8:04pm by Amy

physics
A pot containing 1.09 liter of water, initially at 18°C, is placed on a 1101 W electric heating element. (a) How much heat must be supplied to the water to bring it to a boil? (b) How much heat is necessary to boil all the water away? What is the minimum time required to ...
Monday, April 9, 2012 at 1:05pm by JOHN

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 17.3 g of biphenyl in 34.0 g of benzene?
Monday, February 25, 2013 at 4:52am by Max

chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 11.1 g of biphenyl in 29.1 g of benzene?
Friday, February 22, 2013 at 7:42pm by Anonymous

chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 19.9 g of biphenyl in 34.3 g of benzene?
Monday, January 21, 2013 at 9:05pm by Brianna

Science
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 15.2 g of biphenyl in 29.5 g of benzene?
Tuesday, October 9, 2012 at 12:52pm by Maria

Chem 2
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 12.5 g of biphenyl in 27.9 g of benzene?
Saturday, July 14, 2012 at 5:28pm by Payie

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 18.9 g of biphenyl in 26.4 g of benzene?
Wednesday, February 22, 2012 at 12:10am by Josh

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 10.7 g of biphenyl in 33.9 g of benzene?
Saturday, February 18, 2012 at 10:53pm by Sarah

chemistry
. mol benzene = grams/molar mass benzene. Substitute and solve for mol benzene. molality = mols benzene/kg biphenyl. Substitute and solve for molality. delta T = Kf*m You know delta T and you know m, solve for Kf. delta T, of course, is 4.4. Post your work if you get stuck.
Tuesday, November 13, 2012 at 10:46am by DrBob222

chemistry
2. When 0.354 g of an unknown nonelectrolyte compound was dissolved in 12.5 g of benzene a solution was formed that froze at 4.46°C. (a) Calculate the molar mass of the unknown compound. The freezing point of benzene is 5.48°C, and the Kf of benzene is 5.12 °C/...
Thursday, November 15, 2012 at 7:42am by Helen

Pacific Union College
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 17.5 g of biphenyl in 28.8 g of benzene?
Sunday, February 24, 2013 at 11:26am by Nick

Math
If both those cities have altitudes UNDER a mile above sea level, then at what temperature does water boil?
Thursday, February 5, 2009 at 6:58pm by Writeacher

chemistry
What is the mole ratio of benzene (C6H6) to n-octane in the vapor above a solution of 15.0% benzene and 85.0% n-octane by mass at 25 degrees Celcius? the vapor pressures of n-octane and benzene are 11 torr and 95 torr.
Friday, September 14, 2012 at 9:18pm by Wiped Out

chem
How does molar mass affect the boiling point of covalent substances? The general rule is that heavier molecules boil at a higher temperature. thanks
Monday, April 9, 2007 at 6:11pm by Lydia

chemistry
The vapor pressure of benzene, C6H6, is 60.0 mm Hg at 13.5°C. The molar heat of vaporization of benzene is 30.8 kJ/mol and R = 8.31 10-3 kJ/mol·K. What is the vapor pressure of benzene at 70.0°C?
Wednesday, December 5, 2012 at 9:31pm by Sam

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 19.6 g of biphenyl in 25.1 g of benzene?
Tuesday, January 29, 2013 at 9:23pm by Gabrielle

Chemistry Science
A 15.0 g sample of an unknown compound is dissolved in 100.0 g of benzene. The boiling point is raised 2.67 oC above the boiling point of pure benzene. What is the molar mass of the sample? Kb for benzene is 2.67oC/m.
Tuesday, May 29, 2012 at 5:35pm by science girl

Chemistry
Biphenyl, C12H10, is a nonvolatile, non ionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 14.3 g of biphenyl in 25.8 g of benzene?
Saturday, February 9, 2013 at 3:32pm by Felicia

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure (in torr) of a solution made from dissolving 16.6 g of biphenyl in 26.0 g of benzene?
Wednesday, January 23, 2013 at 2:31am by Ocean

Chemistry
moles biphenyl = grams/molar mass moles benzene = grams/molar mass mol fraction benzene = Xbenzene = mol benzene/total moles. partial pressure benzene = Xbenzene*Pnormal v.p.
Saturday, February 18, 2012 at 10:53pm by DrBob222

college chem
Biphenyl, C12H10, is a nonvolatile, non ionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 14.3 g of biphenyl in 25.8 g of benzene?
Saturday, February 9, 2013 at 5:42pm by Zachary

Organic Chemistry
How do you synthesize methysulfonyl benzene from Benzene?
Saturday, March 10, 2012 at 5:28pm by Tom

Chemistry
Analysis of a compound indicates that it is 49.02% carbon, 2.743% hydrogen, and 48.23% chlorine by mass. A solution is prepared by dissolving 3.150 grams of the compound in 25.00 grams of benzene, C6H6. Benzene has a normal freezing point of 5.50degreeC and the solution ...
Monday, January 10, 2011 at 3:14pm by Tracy

Chemisty-Freezing Points
The freezing point of benzene is 5.5°C. What is the freezing point of a solution of 8.50 g of naphthalene (C10H8) in 425 g of benzene (Kf of benzene = 4.90°C/m)? delta T = Kf m m = mols/kg solvent. Change 8.5 g naphthalene to mols and 425 g benzene to kg. That will get...
Sunday, January 21, 2007 at 9:51pm by Swim4eva

chemistry
What's the freezing point of benzene? delta T = i*Kf*molality i = 2 for NaCl. Kf = ?? for benzene. solve for molality. Then molality = moles/kg solvent. Convert 1 kg solvent (benzene) to moles. moles = grams/molar mass. Finally, mole fraction NaCl = moles NaCl/(moles NaCl...
Sunday, December 5, 2010 at 5:15pm by DrBob222

chemistry
10.0 g sample of p-dichlorobenzene, a component of mothballs, is dissolved in 80.0 g of benzene, C6H6. The freezing-point of the solution is 1.20oC. The freezing point of benzene is 5.48oC. The molal freezing –point constant, kf, for benzene is 5.12oC/m. Calculate the ...
Thursday, August 6, 2009 at 12:24pm by Jim_R

Chemistry partial molar volumes
You have both benzene and chloroform mentioned; however, I assume you intended to write benzene for chloroform OR chloroform for benzene. I will assume the former. nCCl4 = 0.8 x 2.5 nbenzene = 0.2 x 2.5 Then total V = (nbenzene*98 + nCCl4*122).
Wednesday, August 24, 2011 at 8:11pm by DrBob222

Organic Chemistry
I am not clear what the two reacting species are, do you really mean C2H3O^- ?? An acid base reacion is very unlikely to open up the benzene ring in phenol. Benzene rings are very stable, it is quite easy to attach new groups and carbon fragments, but disrupting the benzene ...
Thursday, February 11, 2010 at 1:26am by Dr Russ

Chemistry
When backpacking in the wilderness, hikers often boil water to sterilize it for drinking. Suppose that you are planning a backpacking trip and will need to boil 40L of water for your group. What volume of fuel should you bring? Assume each of the following: the fuel has an ...
Sunday, October 31, 2010 at 2:54pm by Anonymous

Chemistry II
Eugenol, the active ingredient in cloves, has a formula of C10H12O2. What is the boiling point of a solution containing 1.14g of eugenol dissolved in 10.0g of benzene? The boiling point of benzene is 80.1C and the boiling point elevation constant for benzene is 2.53C/m. I got ...
Sunday, September 27, 2009 at 8:24pm by Mandy

Chemistry
My question is why is benzene less reactive than 1,3,5-cyclohexatriene? I know that benzene does not undergo addition reactions and is extremely stable to oxidizing reagents. C atoms in benzene are connected by delocalized double bonds which make them available to all carbon ...
Sunday, February 10, 2008 at 9:31pm by Megan

chemistry
a sample of water under study was found to boil at 102 degree celiceus at normal temperature and pressure . is the water pure
Thursday, June 23, 2011 at 10:39am by sanjeed

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