General Chemistry Latest Exam Questions with
100% verified Answers
Boyle's Law? Charles' Law? Avogadro's Law? - ✔️✔️Boyles - Volume is inversely proportional to
Pressure
Charles - Volume is directly proportional to Temperature
Avogadro - Volume is directly proportional to mols
Combined Gas law - ✔️✔️P1xV1/(n1xT1)=P2xV2/(n2xT2)
Ideal Gas Law - ✔️✔️PV = nRT
Two equations for Density - ✔️✔️Density = P(Molar Mass)/ (RxT) = mass / volume
1 mol of gas = ____ L at STP
STP = ___ atm and ____ K - ✔️✔️1 mol of gas = 22.4 L at STP
STP = 1 atm and 273 K
What are the two values of R? - ✔️✔️R = 0.0821 L*atm/mol*k
R = 8.314 J / mol*K
Graham's Law of Effusion - ✔️✔️r1/r2 = √(M2/M1)
Real Gas Equation - ✔️✔️(P+n2a/v2) (v-nb) = nRT
Rank the Intermolecular Forces - ✔️✔️1. Ion-Dipole
2. Hydrogen Bonding (N-H, F-H, or O-H)
,3. Dipole-Dipole
4. London Dispersion Forces (Van der Waals)
The greater the weight, the ___ the London Dispersion Forces - ✔️✔️greater
Higher Intermolecular Forces Leads to - ✔️✔️- Higher Boiling Point
- Higher Heat of Vaporizaiton
- Higher Viscosity
- Higher Surface Tensions
- LOWER Vapor Pressure
Cubic Unit Cells - ✔️✔️1. Simple Cubic - 1 atom per unit
2. Body-Centered Cubic - 2 atoms per unit
3. Face-Centered Cubic - 4 atoms per unit cell
Phase Changes - ✔️✔️**Instead of Freezing, it's referred to as Crystallization for the DAT**
Boiling Point: When Vapor Pressure = ___ - ✔️✔️External pressure
-Downward pressure is the atmospheric pressure and upward pressure is the vapor pressure
Draw a phase diagram with axis, points, and areas labeled. What is different about the phase
diagram for water? - ✔️✔️
If given a polar molecule, what would it dissolve in? What does miscible mean? - ✔️✔️"Like
dissolves like"
A polar molecule will dissolve in a polar solution
Miscible means homogenous (like sugar in water)
, Molarity(M) and Molality (m) - ✔️✔️Molarity = moles of solute / L of solution
Molality = moles of solute / kg of solvent
Define solvent, solute, unsaturated, saturated, and supersaturated - ✔️✔️solvent = substance
that is present in larger amount
solute = substance that is present in smaller amount
unsaturated = less than the maximum amount of a solute is dissolved in a solvent
saturated = maximum amount of solute dissolved in a solvent
supersaturated = concentration of solute is past the saturation point
Solubility Rules - ✔️✔️1. Most Group 1 metal cations (NO3-, ClO4-, C2H3O2-, and NH4+ salts are
soluble
2. Most Ag+, Pb2+, S2-, OH-, Hg2 2+, CO3 2-, PO4 3- are insoluble
3. The soluble generally trump the insoluble
4 Step Process for Creating a Net Ionic Equation - ✔️✔️1. Balance the Chemical Equation
2. Use your solubility-rule knowledge to label everything as (s), (l), (g), or (aq)
3. Cut all (aq)'s in half, separating their cations from their anions
4. Cancel out all species that are exactly the same on both sides. The canceled-out species are
called spectator ions
Solubility of Solids and Gases - 3 rules - ✔️✔️1. Solids are more soluble at higher temperatures
2. Gases are less soluble at higher temperatures
3. Gases are more soluble at higher pressures
Henry's Law - Pa = ? - ✔️✔️Pa = kh x [A]
100% verified Answers
Boyle's Law? Charles' Law? Avogadro's Law? - ✔️✔️Boyles - Volume is inversely proportional to
Pressure
Charles - Volume is directly proportional to Temperature
Avogadro - Volume is directly proportional to mols
Combined Gas law - ✔️✔️P1xV1/(n1xT1)=P2xV2/(n2xT2)
Ideal Gas Law - ✔️✔️PV = nRT
Two equations for Density - ✔️✔️Density = P(Molar Mass)/ (RxT) = mass / volume
1 mol of gas = ____ L at STP
STP = ___ atm and ____ K - ✔️✔️1 mol of gas = 22.4 L at STP
STP = 1 atm and 273 K
What are the two values of R? - ✔️✔️R = 0.0821 L*atm/mol*k
R = 8.314 J / mol*K
Graham's Law of Effusion - ✔️✔️r1/r2 = √(M2/M1)
Real Gas Equation - ✔️✔️(P+n2a/v2) (v-nb) = nRT
Rank the Intermolecular Forces - ✔️✔️1. Ion-Dipole
2. Hydrogen Bonding (N-H, F-H, or O-H)
,3. Dipole-Dipole
4. London Dispersion Forces (Van der Waals)
The greater the weight, the ___ the London Dispersion Forces - ✔️✔️greater
Higher Intermolecular Forces Leads to - ✔️✔️- Higher Boiling Point
- Higher Heat of Vaporizaiton
- Higher Viscosity
- Higher Surface Tensions
- LOWER Vapor Pressure
Cubic Unit Cells - ✔️✔️1. Simple Cubic - 1 atom per unit
2. Body-Centered Cubic - 2 atoms per unit
3. Face-Centered Cubic - 4 atoms per unit cell
Phase Changes - ✔️✔️**Instead of Freezing, it's referred to as Crystallization for the DAT**
Boiling Point: When Vapor Pressure = ___ - ✔️✔️External pressure
-Downward pressure is the atmospheric pressure and upward pressure is the vapor pressure
Draw a phase diagram with axis, points, and areas labeled. What is different about the phase
diagram for water? - ✔️✔️
If given a polar molecule, what would it dissolve in? What does miscible mean? - ✔️✔️"Like
dissolves like"
A polar molecule will dissolve in a polar solution
Miscible means homogenous (like sugar in water)
, Molarity(M) and Molality (m) - ✔️✔️Molarity = moles of solute / L of solution
Molality = moles of solute / kg of solvent
Define solvent, solute, unsaturated, saturated, and supersaturated - ✔️✔️solvent = substance
that is present in larger amount
solute = substance that is present in smaller amount
unsaturated = less than the maximum amount of a solute is dissolved in a solvent
saturated = maximum amount of solute dissolved in a solvent
supersaturated = concentration of solute is past the saturation point
Solubility Rules - ✔️✔️1. Most Group 1 metal cations (NO3-, ClO4-, C2H3O2-, and NH4+ salts are
soluble
2. Most Ag+, Pb2+, S2-, OH-, Hg2 2+, CO3 2-, PO4 3- are insoluble
3. The soluble generally trump the insoluble
4 Step Process for Creating a Net Ionic Equation - ✔️✔️1. Balance the Chemical Equation
2. Use your solubility-rule knowledge to label everything as (s), (l), (g), or (aq)
3. Cut all (aq)'s in half, separating their cations from their anions
4. Cancel out all species that are exactly the same on both sides. The canceled-out species are
called spectator ions
Solubility of Solids and Gases - 3 rules - ✔️✔️1. Solids are more soluble at higher temperatures
2. Gases are less soluble at higher temperatures
3. Gases are more soluble at higher pressures
Henry's Law - Pa = ? - ✔️✔️Pa = kh x [A]
