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Physical Chemistry
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Questions (634)
A solid consists of mixture of NaNO3 and Mg(NO3)2. When 6.50 g of this solid is dissolved in 50.0 g of water, the freezing point
3 answers
asked by
Stephanie
1,144 views
heat of solution of ammonia in water
4 answers
asked by
k s agrawal
458 views
Estimate the vapor pressure of sea water at 20C given that the vapor pressure of pure water is 2.338 kPa at that temperature and
4 answers
asked by
Melissa
1,491 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
Jane
1,198 views
Calculate the enthalpy of reaction for the combustion of ethene.
3 answers
asked by
.
1,610 views
At 20◦C the vapor pressure of pure methanol
(CH3OH) is 89.0 torr and of pure water (H2O) is 17.5 torr. A solution of methanol
3 answers
asked by
Ethan
1,864 views
What is the density of carbon dioxide gas if 0.196 g occupies a volume of 100 ml?
4 answers
asked by
nick
2,785 views
If vapour pressure of water is 17.5 torr at 20C, what is the water vapour pressure inside a bottle of 100 proof whiskey?
100
4 answers
asked by
Sara
1,368 views
what is the solubility of naphthalene in water?
2 answers
asked by
Francois
826 views
what is the density of carbon tetrachloride vapor at 0.975 atm and 125 celsius
4 answers
asked by
Janett
2,668 views
Calculate the approximate boiling point of a mixture of bromobenzene and water
at atmospheric pressure. A table of vapor pressure
4 answers
asked by
victoria
1,955 views
Calculate the weight of benzene codistilled with each gram of water and the percentage
composition of the vapor produced during a
4 answers
asked by
victoria
1,622 views
the van der waals equation incorperates coreections for the ideal gas law in order to account for the properties of real gases.
4 answers
asked by
Dave
1,616 views
Adding 1.00 g of benzene, C6H6, to 80 g of cyclohexane, C6H12, lowers the freezing point of the cyclohexane from 6.5 to 3.3
4 answers
asked by
Robin
2,427 views
a chemical engineer placed 1.520 g of a hydorcarbon in the bomb of a calorimeter. The bomb was immersed in 2.550 L of water and
5 answers
asked by
Tori
5,199 views
For melting point determination, what is the optimum rate of heating near the melting point? What are the problems, if the rate
7 answers
asked by
Sunday
4,746 views
1.10g of an unknown compound reduces the freezing point of 75.22g benzene from 5.53C to 4.92C. What is the molar mass of the
6 answers
asked by
emerald
3,492 views
Use Henry's law to determine the molar solubility of helium at a pressure of 1.5 atm and 25 degrees celsius .
this is what I
5 answers
asked by
reese
3,398 views
Calculate the osmotic pressure of a 6.0 × 10-2 M solution of NaCl at 20°C (293 K).
4 answers
asked by
Chemistry Chick
1,822 views
The Vapor pressures of pure propyl alcohol and isopropyl alcohol are 21.0 mmHg and 45.2 mmHg, respectively, at 25 (degrees)C.
4 answers
asked by
jimbo
3,286 views
Calculate the freezing of solution of 3.46 g of compound,X, in 160 g of benzen.when separated sample of X was vaporised, it
11 answers
asked by
Ethio
4,022 views
What is the freezing point of a solution that contains 10.0 g of glucose (C6H12O6)in 100.g of H20? Kf for water is 1.86C/m.
5 answers
asked by
Lisa
7,233 views
What is the mass of 0.455 L of butane gas, C4H10, at STP?
4 answers
asked by
shohreh
1,939 views
What will be the freezing point of a solution made by dissolving 5.25 g of naphthalene (C10H8) in 100.0 g benzene (C6H6?). The
4 answers
asked by
Emily
4,302 views
The solubility of argon in water at 25°C is 0.0150 mol/L. What is the Henry's Law constant for argon if the partial pressure of
4 answers
asked by
Esra
4,210 views
why does the value of i (van t' hoff factor) change with regards to theoretical vs. experimental?
i'm not quite sure what happens
4 answers
asked by
Jonathan
1,580 views
if the freezing point of the solution is recorded 0.2 degrees C lower than the actual freezing point, will the molar mass
3 answers
asked by
Brianna Swart
1,107 views
What is the melting point of a mixture of 2.00 lb of NaCl and 12.00 pounds of ice if exactly half of the ice melts? Assume that
6 answers
asked by
Wiped
3,095 views
What is the freezing point of an aqueous solution of 10.0 g of glucose (C6H12O6) in 50.0g H2O? (kf=-1.86 C/m)
4 answers
asked by
bill
2,790 views
The reason that nonpolar oil will not dissolve in polar water is that the attractive forces between:
A. the oil molecules are
4 answers
asked by
Morgan
2,945 views
Assuming 100% dissociation, calculate the freezing point and boiling point of 0.700 mol of AgNO3 in 1.00 kg of water.
4 answers
asked by
Anonymous
2,885 views
The molal freezing point constant for water is 1.86 C/m. at what temperature will a micture of 2.00g of CalCl2 and 25.0g of
4 answers
asked by
Hannah
1,170 views
. What is the molecular weight of a pure gaseous compound having a density of 4.95 g/L at -35 oC and 1020 torr?
4 answers
asked by
mira
1,682 views
Determine the vapour pressure lowering at 25 degree Celsius of 1.25molality sucrose solution assume the solution behaves ideally
4 answers
asked by
Wendy
1,219 views
What is the effect on the boiling point of a solution (for example, water) produced by a soluble nonvolatile substance (for
4 answers
asked by
Phil
4,932 views
Determine the melting point of an aqueous solution containing 115 mg of saccharin (C7H5O3NS)added to 1.00 mL of water (density
4 answers
asked by
Brunette
2,296 views
Is it even possible to guess the signs of Delta H, S, and G from only knowing the following information?:
- Silica gel is a
4 answers
asked by
Katherine
866 views
what is the morality of a solution made by dissolving 1.00g of sodium hydroxide, NaOH in 100 mL of water
4 answers
asked by
c
889 views
calculate the density of 50.0 mg of a gas which occupies a volume of 0.0064 L.
4 answers
asked by
Charity
919 views
Estimate the freezing point of 150 cm3 of water sweetened with 7.5g of sucrose
(C12H11O22). (Kf for water is 1.86 K kg mol-1;
4 answers
asked by
Anonymous
2,255 views
calculate the total vapour pressure of mixture of methanol(64g) and ethanol(92g) at 298K given that the pure vapour pressure of
5 answers
asked by
ruth
1,140 views
Assume you heat 30 g of water until it all turns into gas. At standard conditions, what volume will this water occupy?
Answer in
4 answers
asked by
Big Boy
1,080 views
Assuming equal concentrations, rank these aqueous solutions by their freezing point: low to high
NH4Cl, Sn(ClO3)4, Na2SO4, and
3 answers
asked by
Mike
2,657 views
At 25°C the vapour pressure of pure pentane is 511 torr and that of hexane is 150. torr.
What is the mole fraction of pentane in
4 answers
asked by
paul
1,723 views
At -15.0 C, what is the maximum mass of fructose (C6H12O6) you can add to 3.00 kg of pure water and still have the solution
4 answers
asked by
Tracy
2,449 views
Calculate the osmotic pressure (in torr) of a solution containing 17.15 mg of hemoglobin (molar mass 6.5 x 104 g/mol) in 12.8 mL
4 answers
asked by
Ryan
1,057 views
Explain why the freezing point of a pure solvent is constant, whereas the freezing point of a solution decreases with steady
4 answers
asked by
Cassie
3,682 views
As AgNO3 dissolves, what change occurs in the temperature of the solution?
4 answers
asked by
Anonymous
1,328 views
The equation for lowering the freezing point of a solvent is given in your manual. Given that the freezing point for the pure
4 answers
asked by
Asia
1,355 views
What are the boiling point of a solution prepared by dissolving 2.40g of biphenyl(C^12H^10) in 75.0g of benzene? The molecular
4 answers
asked by
Anonymous
3,818 views
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Parent Categories (3)
Chemistry
Science
Science/Chemistry