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July 24, 2014

Search: Calculate the freezing point of a solution of 2.50 g of Al(NO3)3 in 13.40 g of water. (ans in oC and assume no ion pairing occurs.)

Number of results: 46,730

chemistry
A solution is made by dissolving 15.5 grams of glucose (C6H12O6) in 245 grams of water. What is the freezing-point depression of the solvent if the freezing point constant is -1.86 C/m? Show all of the work needed to solve this problem.
April 6, 2013 by MadiB PLEASE HELP :(

Chemistry
You need to find the freezing point of a 1.50m aqueous NaCl solution. You calculate []Tf to be 1.86 degrees C/m x 3.00m or 5.86 degrees C. What is the temperature at which the solution freezes?
April 27, 2010 by Kim

chemistry
A solution that contains 0.500 g phenol in 12.0 g cyclohexane freezes at C2.44C and boils at 81.94C. Calculate the freezing\point depression and boiling\point elevation constants for cyclohexane.
February 16, 2011 by Anonymous

Chemistry
The freezing point of ethanol is -114.6 deg Celsius and its Kf value is 2.00degC/m. What is the freezing point for a solution prepared by dissolving 50.0g of glycerin in 200g ethanol? I thought it may have been using the formula deltaT=Kf*m, but I'm not sure.
February 13, 2013 by Jonah

Chemistry II
A solution is prepared by placing 72.8 g of magnesium chloride in 120 g of water at 22oC. a)What is the boiling point of the solution? b)What is the freezing point of the solution?
September 16, 2009 by Chase

CHEMISTRY- PLEASE HELP:)!
Pure lauric acid is melted and the freezing point is determined to be 43 degrees celsius. A solution is made by dissolving .50 grams of paradicholrobenzene into 3.00 grams of lauric acid. Determine the molality of this solution. I got 1.1m. which is right. But then it says the...
April 16, 2008 by Miley

Chemistry
Calculate the freezing- and boiling-point changes for a solution containing 12.0 g of naphthalene (C10H8) in 50.0 g of benzene.
May 2, 2010 by Mariah

Chemistry
Calculate the freezing point of each of the solution 75.0 of glucose,C6H12O6 , added to 9.3010−2 of water.... Please help
December 6, 2010 by Garrett

Chemistry
The osmotic pressure of a liquid at 320 K is 145 kPa. Calculate the freezing point of the solution.
November 29, 2011 by David

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.
February 12, 2012 by Hannah

Chemistry 108
Calculate the freezing point and boiling point of a solution containing 14.8g of naphthalene (C10H8) in 120.0mL of benzene. Benzene has a density of 0.877 g/cm3.
June 27, 2014 by Bama

chemistry
What is the expected freezing point of a 3.50 m (m standing for molality)aqueous solution of BaCl2(Kfp= 1.86 degrees Celsius/m)? What is the expected boiling point(Kbp= 0.512 degrees Celsius/m)? which is effected to the greater extent, the boiling point or freezing point? ...
April 7, 2013 by Patricia

science
What is the freezing point of a solution of 12.0 g of CCl4 dissolved in 750.0 g of benzene? The freezing point of benzene is 5.48C; Kf is 5.12C/m.
May 6, 2009 by Stephanie

chemistry
1. If a gaseous sample contains 73% N2 by volume, what is the solubility of N2 in water at 25C and 1.0 atm (kH in H2O at 25C = 7.0 10-4 mol/Latm)? 2. Calculate the vapor pressure of a solution of 0.60 mol of cholesterol in 4.5 mol of toluene at 32C. Pure toluene has a vapor...
January 31, 2011 by Ashley

molal
the freezing point of ethanol (C2H5OH) is -114.6C. the molal freezing point depression constant for ethanol is 2.00C/m. what is the freezing point (C) of a solution prepared by dissolving 50.0 g of glycerin (C3H8O3, A nonelectrolyte) in 200 g of ethanol. i tried to solve it on...
September 16, 2010 by lisa

Chemistry
Calculate the freezing point depression of an aqueous solution prepared by mixing 22.0 g C6H12O6, with 600 ml of water
February 20, 2012 by Kristen

Chemistry
a)How much would the freezing point change in a 2.5m solution of phenol in benzene? (freezing point of phenol is 7.40 degrees C, freezing point of benzene is 5.12 degrees C) b)How much would the boiling point change in a 1.0m solution of magnesium chloride in ethanol? (boiling...
May 3, 2010 by Danny

Chemistry
Calculate the freezing point depression and osmotic pressure at 25 degrees C of an aqueous solution of 1.0 g/L of a protein (mol wt= 90,000) if the density of the solution is 1.0 g/mL. I know how to calculate freezing point depression and osmotic pressure, but I'm having ...
March 24, 2007 by Jessica

chem
calculate the freezing and boiling points of each of the following solutions. (a) 0.50 m glucose in ethanol for the freezing point i got 58 but it said i have the wrong sign...?
March 24, 2011 by hannah

molal (again)
i tried to solve it on my own but im confused about the last part, this i what i have so far.. moles of glycerin= 50.0/92.10=0.54 molality=0.54/0.200=2.7 is that right? im a little confused about the numbers im supposed to use for step 3... this was the question: the freezing ...
September 15, 2010 by lisa

Chemistry hw
Assuming 100% dissociation, calculate the freezing point and boiling point of 3.13 m SnCl4(aq). Tf=? Tb=? My work: SnCl4 with 100% dissociation gives a van't hoff factor of 5, 1Sn 4+ ion and 4 Cl- ions deltaT = i x Kf x m for freezing point = 5 x 0.51C/m x 3.13m = deltaTf ...
February 19, 2012 by Akle

Chemisrty
the freezing point of water is -1.86 degree Cm, if 5.00 g Na2SO4 is desolve at 45.0g H2o the freezing point is changed by -3.82 degree C. Calculate the Van't Hoff Factor for Na2SO4
April 26, 2014 by saemreza

chemistry
the freezing point of water is -1.86 degree Cm, if 5.00 g Na2SO4 is desolve at 45.0g H2o the freezing point is changed by -3.82 degree C. Calculate the Van't Hoff Factor for Na2SO4
April 26, 2014 by saemreza

chemistry
A 115 mL sample of a 10.0 M ethylene glycol (C2H6O2) solution is diluted to 1.30 L. What is the freezing point of the final solution? (Assume a density of 1.06 g/mL for the final solution.) What is the boiling point of the final solution? How would I go about setting this up? ...
April 29, 2012 by Jen

ap chem
Find the molecular mass of a solute by freezing point depression. Solvent: para-dichlorobenzene Freezing point of pure solvent: 53.02C Mass of unknown substance: 2.04g Freezingpointdepressin constant:7.1c/m Mass of para-dichlo...: 24.80g Freexing point solution: 50.78 C Can ...
April 13, 2010 by anonymous

chemistry
When 18 g of ethylene glycol C2H6O2 is dissolved in 150 g of pure water, the freezing point of the solution is ___ (degrees)C. ( The freezing point depression constant for water is 1.86(dgrees)C kg/mol. I know the formulas I just need to see it done step by step please.
August 4, 2008 by Jared

Chemistry
40.0 g of magnesium chloride (MgCl2) in 250.0 g of water at 22 C.Calculate a) the vapor pressure of this solution, b) the freezing point, c) the boiling point. I know it is something like this, but I continue to get the incorrect answer. A) 40.og Mgcl2*(1mol mgcl2/ 95.2 mgcl2...
May 23, 2013 by Jasmine

chemistry
A glucose solution contains 55.8g of glucose (C6H12O6) in 455g of water. Calculate the freezing poing and boiling point of the solution. (Assume a density of 1.00 g/ml for water. This what I did, I got moles of C6H12O6, 0.89 moles C6H12O6 then I got the mass of the solution ...
November 4, 2011 by Monique

Chemistry
What is the freezing point (C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2 in 115 g of water? The molal freezing point depression constant for water is 1.86C/m. (Note that when Ca(NO3)2 dissolves in water Ca2+ and NO32- ions are produced).
May 25, 2012 by Henry

Chemistry
A solution made from .650g of an unknown compound in 27.8 g of diphenyl gave a freezing-point depression of 1.56 degrees C. Calculate the molality of the solution. (Kf for diphenyl is 8 degrees C/m)
October 18, 2010 by Kolby

Chemistry
The freezing point depression of a 0.100 molality solution of NaCl(aq) solution is 0.34 deg C. Calculate the % dissociation of NaCl(aq) (Kf for water = 1.86 deg Cm^-1)
August 30, 2009 by AJ

Chemistry
What is the freezing point of an aqueous 2.65 m calcium chloride (CaCl2) solution? The freezing point of pure water is 0.0C and Kf of pure water is -1.86C/m.
August 21, 2010 by David

Chemistry
What is the freezing point of an aqueous 2.25 m potassium nitrate (KNO3) solution? The freezing point of pure water is 0.0C and Kf of pure water is -1.86C/m.
August 26, 2010 by Cecillia

Chemistry
What is the freezing point of an aqueous 2.25 m potassium nitrate (KNO3) solution? The freezing point of pure water is 0.0C and Kf of pure water is -1.86C/m.
August 26, 2010 by Cecilia

chem132
When 15.0 g of ethyl alcohol, C2H5OH, is dissolved in 750 g of formic acid, the freezing point of the solution is 7.20 C. The freezing point of the pure formic acid is 8.40 C. Evaluate Kf for fomic acid.
July 16, 2010 by bree

chemistry
Automotive antifreeze consists of ethylene glycol, C2H6O2, a nonvolatile electrolyte. Calculate the boiling point and freezing point of a 25.0 mass percent of ethylene glycol in solution.
January 31, 2010 by danielle

Chemistry
Two moles of a nonelectrolyte solute are dissolved in 1 kg of an unknown solvent. The solution freezes at 7.8 degrees Celsius below its normal freezing point. What is the molal freezing point constant of the unknown solvent? What is your prediction for the identity of the ...
May 17, 2010 by Alyssa

Chemistry
A 1.065-g sample of an unknown substance is dissolved in 30.00 g of benzene; the freezing point of the solution is 4.25 degrees C. The compound is 50.69% C, 4.23% H, and 45.08% O by mass. Info you might need on benzene: Normal Freezing point,degrees C: 5.53 Kf, degrees m^1: 5....
February 25, 2013 by JJ

Chemistry
What is the freezing point of a solution made by dissolving 450 g of ethylene glycol (C2H6O2) in 550 g of water? The freezing point of pure water is 0.0C and Kf of pure water is -1.86C/m.
August 21, 2010 by Cecilia

chemistry
Data: freezing point of pure cyclohexane: 6.0 degrees celcius Freezing point of unknown soluton: 1.6 degrees celcius weight of cyclohexane: 40.0231g=0.0400231 kg weight of unknown solute: 0.4872 g K_f_ of cyclohexane: -20.00 degrees Celciusx kg/mole questions: 1. what is the ...
May 2, 2011 by Tina

Chemistry
Cyclohexane has a freezing point of 6.6 degree Celsius and a K(f) of 20.0 degree Celsius/m. 1.50g of an unknown solute is dissolved wth 18.0g of cyclohexane. The freezing point of the solution was 1.3 degree Celsius Using this iInformation assuming the solute doesn't ...
May 27, 2013 by Michael

chemistry
The boiling point of an aqueous solution is elevated by 0.15 degrees celcius. the change in freezing point of the solution, delta T, is? a.) -6.32 b.) 0.15 c.) -0.15 d.) 0.54 e.) -0.54 I know the answer is d, i just don't understand how to get it! thanks!
December 14, 2010 by Emily

Chemistry:Freezing Points
The freezing point lowering of a saturated aqueous solution of NaCl is 17 Celsius. Would spreading salt on the icy sidewalks be beneficial when the temperature outside is -8 Fahrenheit? Explain.
November 11, 2012 by Anonymous

Chemistry
An aqueous solution is 0.257 m NaOH. What are the boiling point and freezing point of this solution?
March 29, 2012 by MJ

chemistry
which solution has highest freezing point if all are at the same molality calcium chloride sodium nitrate potassium sulfate iron(III) nitrate all have same freezing point please explain
March 16, 2012 by kim

CHEM- solution/freezing piont
a solution of sulfur (2.560g) in naphthalene (100g) freezes 0.68K lower the freezing point of pure naphthalene (353.10K). for naphthalene, Kf= 6.8K kg mol. calculatem the molecular formula of the sulfur dissolved in the naphthalene?
October 14, 2010 by lulu

chemistry
what is the freezing point of a solution of 12.0 g of CCl4 dissolved in 750.0g of benzene? the freezing point of benzene is 5.48 degrees C ; Kf is 5.12 degrees c/m.
April 28, 2010 by Kim

CHemistry....Please help
What mass of ethylene glycol C2H6O2, the main component of antifreeze, must be added to 10.0 L water to produce a solution for use in a car's radiator that freezes at -23C? Assume density for water is exactly 1g/mL. ----------------------------------- This is what i have so ...
January 22, 2009 by Saira

Chemistry
1. Which of the following is not true? a. The freezing point of sea water is lower than the freezing point of pure water. b. The boiling point of a water sample from the Salt Lake is lower than the boiling point of pure water. c. The freezing point of 0.1 M NaCl is lower than...
March 17, 2008 by Cameo

Chemistry
A 1.00% by mass MgSO4(aq) solution has a freezing point of -0.192C. (a) Estimate the van't Hoff i factor from the data. (b) Determine the total molality of all solute species. (c) Calculate the percentage dissociation of MgSO4 in this solution. Can anyone help me with this at...
December 10, 2010 by Daiyo

chemistry, freezing point depression
Hey guys I did a lab and I have to answer the questions relating to the lab. I did question 1 & 2, can someone check if they are correct, and question 3 I don't know how to do it. 1. Calculation to Determine the molecular weight of unknown substance Mass of unknown used: 2.0 g...
February 6, 2009 by Sev

chemistry
calculate the freezing point of an aqueous solution of 15.5 grams of glucose dissolved in 150 grams of water
March 22, 2014 by Sara

Chemistry
Which of the following solutes, dissolved in 1000g of water, would provide a solution would the lowest freezing point? .030 mol of BaCl2, CO(NH2)2, CaSO4, CH3COOH, or .030 mol of NH4NO3 Again, the steps needed to determine for the freezing point.
February 19, 2013 by Marcus

chemistry
4) An aqueous solution is 1.65 m glucose. What are the boiling point and freezing point of this solution?
October 15, 2012 by Mike

Chemisty-Freezing Points
The freezing point of benzene is 5.5C. What is the freezing point of a solution of 8.50 g of naphthalene (C10H8) in 425 g of benzene (Kf of benzene = 4.90C/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 delta T...
January 21, 2007 by Swim4eva

Chemistry
The freezing point of benzene is 5.5C. What is the freezing point of a solution of 8.50 g of naphthalene (C10H8) in 425 g of benzene (Kf of benzene = 4.90C/m)? I worked this problem for someone just a couple of days ago. delta T = kf m kf = 4.90 m = molality = mols/kg. ...
January 24, 2007 by Kelly

chemistry
Calculate the freezing point of a solution contaning 5.0 grams of KCl and 550.0 grams of water. answer is -0.45 C but i don't know how to get here
October 4, 2012 by Paloa

science
Using data from this table of molal boiling-point-elevation and freezing-point-depression constants, calculate the freezing and boiling points of each of the following solutions. a)0.39 m glucose in ethanol (b) 22.8 g of decane, C10H22, in 53.9 g CHCl3 (c) 3.90 g NaOH in 109 g...
January 23, 2013 by Hannah

Chem
a chemist is asked to identify 2 solutions whose labels have peeled off. One is known to contain 1.0 mol of NaCl, the other is 1 mol of Na2CO3. Both solutes are dissolved in 1 kg of water. If the chemist measures the freezing point of each solution, can it identify which is ...
April 30, 2007 by Kim

Chemistry
The freezing point of ethanol is -114.6 C and its Kf value is 2.00 C/m. What is the freezing point for the solution prepared by dissolving 50.0 g of glycerin (C3H8O3) in 200.0 g ethanol? I used Change in temp=Kfm kf=2.00 I calculated m to be 2.1736. I ended up the answer of -...
February 13, 2013 by Lauren

Chemistry
Thyroxine, an important hormone that controls the rate of metabolism in the body can be isolated from the thyroid gland. If 0.455 g of thyroxine is dissolved in 10.0 g of benzene, the freezing point of the solution could be measured as 5.144C. Pure benzene freezes at 5.444C...
January 21, 2013 by Emma

science
hi guys I really need some help with my homework its so confusing here it is. 5.00g of glucose,C6H12O6, is dissolved in 500g of acetic acid. What is the new freezing point and boiling point for the solution? Kf,acetic acid = 3.90 Kb,acetic acid = 3.07 (normal freezing point ...
March 24, 2007 by stacy

Chemistry
A solution is prepared by placing 72.8 g of calcium chloride in 120 g of water at 22C. The vapor pressure of water at 22C is 2.6 kPa. a)What is the boiling point of the solution? b)What is the freezing point of the solution?
September 16, 2009 by haley

Chemistry
Pure benzene has a normal freezing point of 5.50 degrees Celsius. A solution containing 11.4 grams of a molecular substance dissolved in 150.0 grams of benzene (Kf=5.12C/m) has a freezing point of 1.20 degrees Celsius. What is the molar mass of the solute?
March 22, 2010 by Katelynn

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

chemistry
Analysis of a compound gave 39.50% C, 2.20% H, and 58.30% Cl. When 0.855 g of this solid was dissolved in 7.50 g of napthalene, the solution had a freezing point of 78.0 C. The pure solvent freezes at 80.0 C; its molal freezing point constant is 6.8 C/m. What is the ...
September 14, 2010 by Chris

Chemistry
I am confused about why this is the answer to a practice problem I was given. (answer is c). Could someone explain why/why not for each answer? 2) Solution A is made from 1 L of water and 0.1 moles of Na(CH3COO), and Solution B is made from 1 L of water and 0.1 moles of Na2(...
March 7, 2010 by Trixie

Chemistry
I'm not sure if i did this problem right or not. I keep reading through my book, and i think i followed the equations right, but i'm not confident with my answers. The problem: 5.0 g of glucose,C6H12O6, is disolved in 500.0 g of acetic acid. What is the new freezing point and ...
October 22, 2010 by Angelina

Chemistry
which property of a distilled water solution will not be affected by adding 50 mL of CH3OH to 100.mL of the water solution at 25? conductivity mass freezing point boiling point please help
February 23, 2011 by Penny

chemistry
Compute the freezing point of this Solution: 25.5g C7H11NO7S (4-nitro-2-toluenesulfonoic acid dihydrate) in 1.00*10^2g H2O (nonionizing solute) The freezing point of H2O is lowered 1.86 Celsius per mole of solute. The boiling point of H2O is raised 0.512 Celsius per mole of ...
November 22, 2010 by Jose Reyes

chemistry
1. Would it be advisable to determine the freezing point of pure p-dichlorobenzene with one thermometer and the freezing point of the solution with a different one? Explain. 2. If 0.150 mole of a nonvolatile non-electrolyte solute is present in 1200g of water, what are the ...
February 2, 2012 by Larry

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.
April 4, 2011 by Jake

Chemistry
Does anyone know how to do this problem, i can't seem to solve it. If 39.25 g of a substance is dissolved in 155.5 g of benzene solvent, the freezing point of the solution is 0.08 oC. Calculate the apparent molar mass (g/mol) of substance.
February 2, 2010 by SuSu

chem
A solution prepared by dissolving 3.00 grams of ascorbic acid (vitamin C, C6H8O6), in 50.0 grams of acetic acid has a freezing point that is depressed by T = 1.33 oC below that of pure acetic acid. What is the value of the molar freezing point-depression constant for acetic ...
February 18, 2013 by Ace

chemistry
When 18 g of ethylene glycol C2H6O2 is dissolved in 150 g of pure water, the freezing point of the solution is _C . (The freezing point depression constant for water is 1.86C kg) what i tried was 18/62 to find the moles. then i got .29/.150 to solve for the molality. then i ...
April 7, 2008 by david

Chem 2
Vitamin K is involved in normal blood clotting. When 1.56 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 5.23 C. . Calculate the molar mass of vitamin K.
February 20, 2014 by Bri

chemistry
what are the boiling point and freezing point of a 3.17 m solution of naphthalene in benzene
December 7, 2012 by Anonymous

science
What is the boiling point of a solution of 0.150g of glycerol in 20g of water? What is the freezing point?
January 28, 2013 by Absa

chemistry
A 0.100 m K2SO4 solution has a freezing point of -0.43C. What is the van't Hoff factor for this solution? Kf = 1.86C/m
February 5, 2012 by Anonymous

chemistry
Calculate the freezing point and boiling point of 12.0g of glucose (C6H12O6) in 50.0g H20
February 10, 2010 by Laverne

Chemistry
Calculate the molecular mass of the nonionic solutes. 8.02 grams of solute in 861 grams of water lower the freezing point to -0.430 celsius. the freezing point of H2O is lowered 1.86 celsius per mole of solute. the boiling point of H2O is raised 0.512 celsius per mole of solute.
November 22, 2010 by Jose Reyes

chem
What is the freezing point (C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2 (formula weight = 164 g/mol) in 115 g of water? The molal freezing point depression constant for water is 1.86 C/m. whats wrong with my answer: molal: 0.069 moles Ca(NO3)2/0.115kg= 0.6 0....
September 26, 2010 by jessie

Chem 2
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.44 m Na2SO4(aq)
February 6, 2014 by LLamaboy

chemistry
How do I calculate the freezing point of 11.3g FeCl3 in 155g water? I know how to calculate i and m but how do you find Kf?
December 4, 2012 by Farah Massardi

Chemistry
The boiling point of an aqueous solution is 102.35 C. What is the freezing point? Constants can be found here.
February 21, 2012 by Heather

Chemistry
What would the freezing point be for a solution of 0.87 M aqueous ammonia? the density of this solution is 0.922 g/cm3.
May 1, 2010 by Anonymous

Chemistry (science)
I dont know how to answer this. An aqueous solution of glucose has a freezing point of -0.37. What is the concentration of the solution?
August 26, 2012 by Camela

Chemistry
The boiling point of an aq solution 102.11 C. What is the freezing point?
July 12, 2011 by Josh

chemistry
calculate the freezing point of an aqueous solution containing 10.50 g of MgBr2 in 200 g of water (MgBr2=184 g, Kf for water =1.80 K kg mol-1)
June 12, 2013 by rahul

CHM
From the following: 1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of CaCl2 Choose the one with the largest van't Hoff factor and hence the lowest freezing point.
February 9, 2010 by CC

Chemistry
From the following: 1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of CaCl2 Choose the one with the largest van't Hoff factor and hence the lowest freezing point.
February 9, 2010 by CC

chem hw
Assuming equal concentrations, rank these aqueous solutions by their freezing point: Li2SO4, Li3PO4, SnCl4, NH4Br. (from highest freezing point to lowest freezing poinT) Is the order Li3PO4, Li2SO4, SnCl4, and NH4Br???????? If not what is the correct order?
February 19, 2012 by Amy

Chem TWO
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.91 m K3PO4(aq).
July 14, 2012 by Jenny

Chem(again)
What is the relationship between the amount of solute and the amount of freezing point depression? delta T = kf m where delta T is the difference between the normal freezing point and the f.p. with a solute, kf is the freezing point constant, and m is the molality. Some ...
February 6, 2007 by Chrissy

Chem-Molality
What are the boiling point and freezing point of a 0.22 m solution of sucrose in ethanol? Can someone help me with this quickly? I'm SO confused~!
April 17, 2011 by Hai

chemistry
What are the freezing point and boiling point of an aqueous solution of 15.5 g glucose(C6H12O6) dissolved in 150 g of water?
April 7, 2013 by Daniel

Chemistry
What is the (a) molality, (b) freezing point, and (c) boiling point of a solution containing 2.29 g napthalene (C10H8) in 44.6 g of benzene (C6H6)?
April 19, 2013 by C

Chemistry
what would the freezing point be for a solution of 0.87M aqueous ammonia? The density of this solution is 0.992g/cm3
May 3, 2010 by Chem

Chemistry
for a question it is given that there is 14.6 g of calcium chloride in 246 g of water. Kf is 1.86 C/m we need to find the freezing point of this solution. when i do the calculations, i get the freezing point to be -0.99 (without using the vant hoff factor i) or i get -2.98 (...
November 8, 2012 by Ania

Chemistry
a solution of 0.2113 g of water dissolv ed in 25g of a solvent freezes at 11.5 degrees celcius below the freezing point of the solvent. what is the Kf for the solvent? A)0.735 B)1.36 c)5.39 D)24.5 Help!!! delta T = Kf*molality Calculate molality = #mols solute/kg solvent, plug...
April 27, 2007 by natali

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