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Physical Chemistry
Page 5
Questions (634)
The density of iron at 25 C is 7.871 g/cm^3
what is the volume of one mole of solid iron at 25 C? i understand that volume = m/d
3 answers
asked by
Matt
434 views
Hi!
there's 3 questions..if you can help on any that'd be great..thanks! 1. Volatile liquids with lower boiling points often give
3 answers
asked by
AG
1,229 views
The measured osmotic pressure of seawater is 25 atm at 273K.
a.) What is the activity of water in seawater at 273 K? Take the
3 answers
asked by
Amy
696 views
How could you describe the changes that happen when carbon changes form from graphite to diamond?
2 answers
asked anonymously
39 views
Write an equation that explains the conductivity of CO2(aq, saturated)
3 answers
asked by
Taylor
504 views
what are molecules dissolved in liquid called
2 answers
asked anonymously
19 views
What is the boiling point of oil
2 answers
asked anonymously
19 views
Compare using <,>, or =
1 answer
asked anonymously
35 views
State whether the change in enthalpy is positive or negative for each of the
following steps in the formation of a solution:
1 answer
asked anonymously
88 views
How does a size of molecules affect its rate of diffusion
1 answer
asked by
Romeo
90 views
How does diffusion affect the concentration of molecules in a solution
1 answer
asked by
Romeo
61 views
The boiling point of water at 735mmHg is 99.073°C. What mass of BaCl2 should be added to 2.28kg water to increase the boiling
1 answer
asked by
ava
93 views
hydrogen diffuse seven times faster than gas x under the same pressure calculate the relative molecular mass of gas x if that of
2 answers
asked by
Regan
103 views
the vapour pressure of ethanol (C2H5OH)and 1-propanol(C3H7OH)at35c are 100mmHg and 37.6mmHg,respectively.assuming ideal
4 answers
asked by
mahlet
313 views
2 ml ethanol evaporates after how many minutes
2 answers
asked by
Anonymous
163 views
The freezing point depression constant for water is 1.86 degree C. If 5.00g Na2so4 is dissolved in 45.0g H20 ,the freezing point
1 answer
asked by
Poonam
506 views
Intermolecular forces by determination of the evaporation rate of different liquids
1 answer
asked by
Thembelihle mhlamvu
411 views
explain the observed temperature change upon mixing ethanol and cyclohexane.
2 answers
asked by
mercy
605 views
explain the observed temperature change upon mixing ethanol and cyclohexane
1 answer
asked by
Dominique shing
454 views
A 298k the vapour pressure of water is 23.75mmhg.calculate the vapour pressure at same tempreature over 5% aqurous solution of
4 answers
asked by
Chavi
1,754 views
Estimate the boiling point of 250 cm3 of water to which 12.6 g of phenol(C6H5OH) has been added. Treat the solution as ideal.(
2 answers
asked by
Byeong Ju
626 views
(a) Which of the properties, crystal lattice energy and hydration energy, reduces the solubility of an ionic compound?
(b) Which
3 answers
asked by
Sherry
568 views
The solubility of CO2 in water at 25 degrees Celsius and P CO2= 1 atm is 0.034 mol/L. What is its water solubility under normal
4 answers
asked by
Student
2,890 views
Determine the freezing point of an aqueous solution containing 10.50 g of magnesium bromide in 200.0 g of water.?
1 answer
asked by
Will
426 views
what is a solubility rate?
1 answer
asked by
chemistry
281 views
is this positive or negative entropy?
devitrication of glass desalination of water hard of boiling of a egg
7 answers
asked by
Anonymous
499 views
The Kw of water varies with temperature. Calculate the pH of water at 46℃ with a Kw=1.219 x 10 to the negative 14th.
3 answers
asked by
Gloria
570 views
Why two immiscible liquids will boil at at a lower temperature than the boiling points of either pure component
2 answers
asked by
josef
579 views
how does an electrolyte (KNO3) affect the formation of micelles?? I'm very unsure. Do they interact with the polar head?
1 answer
asked by
pan
367 views
how do electrolytes affect the formation of micelles?
1 answer
asked by
pan
298 views
how do electrolytes affect the formation of micelles?
1 answer
asked by
pan
312 views
What is the vapor pressure (in mmHg) of a solution containing 16.0 g of (3 marks) glucose (C6H12O6) in 80.0 g of methanol
2 answers
asked by
jonny
631 views
What are the differences in measuring the molar mass using freezing point depression between studying ionic solids and molecular
2 answers
asked by
paula
659 views
ap chemistry - an, Tuesday, January 6, 2015 at 12:59am
HELP ME WITH THIS ONE WHEN DONE WITH THE OTHER THX calculate the
4 answers
asked by
lamar
554 views
calculate the concentration of CO2 in a soft drink after the bottle is opened and equilibrates at 25C under a CO2 partial
2 answers
asked by
an
1,033 views
What is the Van't Hoff Factor of
MgSO4*7H2O? We're doing a colligative properties lab at my school where we dissolve various
3 answers
asked by
David
1,843 views
Please help, about real gas deviation from ideal behavior.
when we plot graph against P and PV, at 17¡ãC,: for H2, there's
1 answer
asked by
Learner11
524 views
Calculate boiling point and freezing point of this solution which contains 5.85g of C6H12O6 in 255g H2O. pleasee
1 answer
asked by
Sheena
445 views
calculate the vapor pressure of a solution made by dissolving 61.7g (molar mass= 60.06g/mol) of Urea in 212ml of water at 35C.
2 answers
asked by
PleaseHelp
662 views
The solubility of acetanilide is 3.53 g in 100 mL of chloroform at 0 °C, and 29.1 g in 100 mL of chloroform at 60 °C. What is
4 answers
asked by
A Giles
2,431 views
A 200.0g sample of glucose(180.16g/mol, Kmp=1.86 degrees celcius/m, mp=146 degrees celcius)is contaminated with 5.000g of table
5 answers
asked by
Anonymous
777 views
The following equilibrium partial pressures were measured at 750 deg C. PH2=0.387atm,PCO2=0.152atm,PCO= 0.180 atm,and
2 answers
asked by
=)
480 views
what are the heats of fusion/vaporization & specific heats of nitroglycerin
2 answers
asked by
matt
477 views
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
1 answer
asked by
saemreza
504 views
Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out
4 answers
asked by
ieshia
3,044 views
Lowering of vapor pressure is directly proportional to:
a) Temperature b) Mole fraction of Solute c) Mole fraction of Solvent d)
2 answers
asked by
Riana
531 views
Lowering of vapor pressure is directly proportional to:
a) Temperature b) Mole fraction of Solute c) Mole fraction of Solvent d)
1 answer
asked by
Riana
404 views
At a constant temperature of 20oC and the partial pressure of 760 mmHg, the solubility of CO2 in water is 0.169g per 100mL. If
1 answer
asked by
Anonymous
460 views
What is the boiling point of a solution of 0.515 grams of acenaphthene (C12H10) in 15 grams chloroform (CHCl3) given pure
7 answers
asked by
Kim
826 views
When water temperature is 10 °C, calculate the saturation concentration for oxygen (at atmospheric pressure).
1 answer
asked by
yet
398 views
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Parent Categories (3)
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