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General Chemistry 2 > Kahoot > Flashcards

Kahoot Flashcards

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1
Q

It is any force that binds together the atoms making up a molecule or compound

A

Intramolecular force

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2
Q

Boiling point and Melting point are physical properties

True or False

A

True

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3
Q

What is the effect of the IMF on the boiling point?

A. Molecules with stronger IMF will have a higher boiling point
B. IMF has no effect on the boiling point
C. Molecules with stronger IMF will have a 100 boiling point.
D. Molecules with stronger IMF will have a lower boiling point

A

A. Molecules with stronger IMF will have a higher boiling point

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4
Q

London dispersion forces are the Weakest Intermolecular Forces

True or False

A

True

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5
Q

Ion-Dipole forces is the Strongest Intramolecular Force

True or Flase

A

False
Ion-Dipole is an intermolecular force :)

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6
Q

Identify the IMF;
It is a special kind of dipole-dipole interaction formed when a hydrogen atom covalently bonded to a small and highly electronegative atom such as N, O, or F.

A

Hydrogen Bond

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7
Q

Is Glass an amorphous solid?

True or False

A

True

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8
Q

Is Quartz an amorphous solid?

True or False

A

False

Quartz is a crystalline

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9
Q

What is the relationship between IMF and vapor pressure

A. No effect
B. Same Vapor pressure
C. Stronger IMF = Lower Vapor Pressure
D. Stronger IMF = Higher Vapor Pressure

A

C. Stronger IMF = Lower Vapor Pressure

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10
Q

Which has the greatest IMF (london dispersion) between Br2, F2, Cl2, I2

A

I2

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11
Q

Which has the weakest IMF (london dispersion) between Br2, F2, Cl,2, I2

A

F2

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12
Q

According to KMT, Increase in temperature will cause the average KE of the particles in solid, liquid, and gas to increase.

True or Flase

A

True

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13
Q

It contains maximum amount of solute that will dissolve in a solvent

A

Saturated

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14
Q

It contains more than the maximum amount of solute that will dissolve in a solvent

A

Super Saturated

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15
Q

It contains less than the maximum amount of solute that will dissolve in a solvent

A

Unsaturated

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16
Q

Calculate the mass percent of a NaNO3 solution when 150.0 g NaNO3 is dissolved in 500 mL of H2O, Density of H2O = 1g/ml

A

0.23

w/w% = Solute/Solution

150g = Solute
500 mL = Solvent

150g (Solute)+500 mL (Solvent) = 650 (Solution)

150 divided by 650 = 0.23 w/w%

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17
Q

Molarity (m) is defined as the amount of the solute (mol) per mass of solvent (kg)

A

False

Molarity (m) <== Wrong Symbol
Molarity (M) <== Correct Symbol

18
Q

The substance dissolved in a solution and is usually present in smaller amounts.

A

Solute

19
Q

The dissolving medium in a solution and is usually present in larger amounts

A

Solvent

20
Q

Which % equation is best for a solute with L unit and solvent with L unit

%volume
%mass
%mass-volume
%volume-mass

A

%volume

21
Q

Which % equation is best for a solute with kg unit and solution with kg unit

%volume
%mass
%mass-volume
%volume-mass

A

%mass

22
Q

Which % equation is best for a solute with kg unit and solution with mL unit?

A

%mass-volume

23
Q

The volume of the solution is the amount of solvent in mL or L

A

False

the volume of the solution is the amount of solute and solvent in mL or L

24
Q

The mass of the solution is the amount of solvent and solute in kg or g

A

True

25
Q

What is the relationship of the solubility of a gas and temperature?

A. Solubility of a gas in water will increase with increasing temperature
B. Solubility of gas in water will decrease with increasing temperature
C. There is no Relationship
D. The solubility will remain the same

A

B. Solubility of gas in water will decrease with increasing temperature

Gas with higher temperatures has higher kinetic energy, so they move
more erratically, meaning they are more difficult to handle

26
Q

When is the best time to fish, during daytime (hot temp) or nighttime (colder temp)? Why?

A. Temperature does not have an effect
B. Night time because there will be more dissolved O2
C. Daytime because there will be more dissolved O2
D. Any time

A

B. Night time because there will be more dissolved O2

Gasses with lower temperatures have lower kinetic energy, so they move less erratically, making them more likely to dissolve.

27
Q

What will be the effect of the size of a molecule on the London dispersion force?

A. Greater the Surface area the stronger the atom
B. The size of the molecule has no effect on the London dispersion force
C. Greater the size of the molecule the Lesser the London Dispersion force
D. Greater the size of the molecule the greater the London dispersion force

A

D. Greater the size of the molecule the greater the London dispersion force

The larger the molecule, the higher the polarizability
Higher polarizability means stronger dispersion forces

28
Q

London dispersion forces depend on the size of the material. Heavier atoms or molecules have more electrons and stronger London Force.

True or False

A

True

29
Q

If Chlorine is an anion, what charge of an atom will be attracted to it?

A

Cation (+)

An Anion is an ion with a negative charge

Oppositely charged ions attract each other.

30
Q

Beaker is the most accurate with tolerances of less than 0.2%

True or False

A

False

Volumetric Flask

31
Q

Which shows cohesion?

Concave Meniscus
Convex Meniscus

A

Convex Meniscus

32
Q

Which shows Adhesion?

Concave Meniscus
Convex Meniscus

A

Concave Meniscus

33
Q

Cohesion is the INtermolecular force between 2 types of molecules. Adhesion is the attractive force between 2 similar molecules

A

False

34
Q

Soap is effective as a cleaning agent because it is amphiphilic, it is partly polar (hydrophilic) and partly nonpolar (hydrophobic)

Ture or False

A

True

35
Q

Ionic and Covalent Bonding is an Intermolecular force

True or False

A

False

Ionic and Covalent is an Intramolecular force

36
Q

London dispersion and dipole-dipole interaction is Intramolecular Force

A

False
London dispersion and dipole-dipole is an Intermolecular Force

37
Q

What is the relationship between the solubility of a gas and pressure?

A. Solubility of a gas in water will increase with increasing pressure
B. The Solubility will remain the same
C. Solubility of a gas in water will decrease with increasing pressure
D. There is no relationship

A

A. Solubility of a gas in water will increase with increasing pressure

Gas is compressible so we can assume that the solubility will increase because as we increase the pressure the gas will become much more compressed with the water, leading it to become easier to dissolve

38
Q

What is the effect of the vapor pressure of adding an electrolyte solute in a solvent?

A. The nonvolatile solution will have the lowest vapor pressure
B. The less electrolyte dissociation, the lowest the vapor pressure is
C. The volatile solution will have the lowest vapor pressure
D. The more electrolyte dissociation, the lowest the vapor pressure is.

A

D. The more electrolyte dissociation, the lowest the vapor pressure is.

As the electrolytes become dissociated, they begin to occupy spaces, reducing the room for the solvent molecules, thus reducing the amount of vapor pressure.

39
Q

Properties that depend on the number of solute particles in a solution (concentration) but not its identity

A

Colligative

40
Q

Min. pressure that is applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane

A

Osmotic Pressure

General Chemistry 2 (2 decks)

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