Intermolecular Forces
What is the weakest type of intermolecular force
What is London Dispersion Forces
Gaseous water vapor can frost the windows of a car on a cold morning. This process of a gas changing directly into a solid is known as _____.
Deposition
What Is the Formula for Molarity? (be specfic)
Moles of Solute/ Liters of Solution.
In a Phase Diagram a gas can be found in what side of the phase diagram.
To the most right
In scientific terms: Gas is found in low pressure but higher temperature
What will be the vant off factor for C2H4O2
It will be 1
Choose the pair of substances that are most likely to form a homogeneous solution
a. N₂O₄ and NH₄Cl
b. NaF and C₅H₁₂
c. C6.H14 and H₂O
d. CBr₄ and C₆H₁₄
What is CBr₄ and C₆H₁₄
A student sees a glass of cold ice in which sugar has been added, some of which has collected in the bottom of the glass. With respect to the sugar in the ice tea, she determines that the condition of the solution is
Saturated
Walter has 10g of CH3 and 6g H2 and 2 mole of Li. Find the mass percent of CH3.
The mass percent 33.46
What is the triple Point. (from phase diagram)
What is when all 3 states are in equilibrium
- fancy way of saying that all 3 states are present.
What Charastertics of a molecule decreases as Intermolecular Forces Increase in strength.
Vapor Pressure
Which molecule is the most soluble in water?
a. CH3OH
b.CH3OCH3
c. CH3CH2CH2CH3
d. idk man just came for the credit lolz
what is CH3OH
Missy drops 50 grams of sugar into a cup of water at 20 celsius. A solid piles up at the bottom of the cup. Missy then Raises the heat to 60 celsius and once the water cools back down to 20 celsius the solid is gone. What is the state of that water cup
Supersaturated
Calculate the Molarity of a 2.50% by mass aqueous NaCl solution whose density is 1.03 g/ml NaCl:58.44 g/mol
M=.44
Which aqueous solution has the largest boiling-point elevation?
a.2.5 m C6H12O6
b.1.5 m MgCl2
c.2.0 m NaCl
d.1.0 m KNO3
what is b. 1.5 M MgCl2
Ozone decomposes to oxygen according to the balanced chemical equation below.
2O3 (g)→3O2(g)
If the rate of disappearance of ozone is -2.4x10-6 M/s. What is the rate of formation of oxygen?
3.6x10-6
Which of the following substances has the least solubility in Hexane, CH3CH2CH2CH2CH2CH3
A. CH3COOH
B. CH3CH2COOH
C. CH3CH2CH2COOH
D. CH3CH2
C. CH3CH2CH2COOH
Which conditions favor the high solubility of a gas in a liquid?
high pressure, low temperature
29.22 g of NaCl (MM=58.45 g/mol) is dissolved in enough water to form 0.250 L. What is the concentration in molarity units?
what is 1.99
Calculate the freezing point of a 0.04500 m aqueous solution of NaNO3. The molal freezing- point-depression constant of water is 1.86 C/m
what is -.1674
What would be the order if the units of k are M-1s-1
Second Order
Based on the following data, which substance has the weakest intermolecular forces?
ΔH of Vaporization
argon 6.3 kJ/mol
benzene 31.0 kJ/mok
ethanol 39.3 kJ/mol
water 40.8 kJ/mol
methane 9.2 kJ/mol
what is Argon 6.3 kJ/mol
A a 10ml water cup can hold 100g/mL of sugar. Daniel drops 25g of sugar into a 5ml water cap. What is the state of this solution.
what is unsaturated solution
A 250-mL bottle of a sports drink solution contains 4.50% by mass of sodium chloride. What is the molal concentration (m) of sodium chloride in this bottle of sports drink. (MM NaCl= 58.44 g/mol)
what is .806
What is the freezing point of a solution prepared by dissolving 11.3 g of Ca(NO3)2 (MM=164 g/mol) in 115 g of water? The molal freezing point depression constant for water is 1.86 °C/m?
what is -3.34