Multiple choice
Which sequence represents only alkenes?
A. C2H2, C2H4, C2H6
B. C2H2, C3H4, C6H6
C. C2H4, C3H4, C4H4
D. C2H4, C3H6, C4H8
D. C2H4, C3H6, C4H8
What is the molecular geometry of the italizised carbon atom in the listed compound, CH2=CH-CH3
A. Tetrahedral
B. Trigonal Planar
C. Linear
D. Bent
E. None of the above
B. Trigonal Planar
The ability of sodium chloride to mix with water is most likely due to:
A. Dispersion forces
B. Ion-dipole forces
C. Dipole-dipole forces
D. Hydrogen bonding
B. Ion-dipole forces
An aqueous ethanol solution (0.400 L) was diluted to 4.00 L, giving a concentration of 0.0400 M. The concentration of the original solution was _____ M.
0.400 M
CH2=O
Aldehyde and Methanol
Which of the following has the lowest boiling point?
A. Butane
B. Ethane
C. Methane
D. Propane
D. Propane
Which substance has the lowest boiling point?
A. Br2
B. F2
C. I2
D. Cl2
E. D and C
B. F2
Which intermolecular force is due to the formation of an instantaneous dipole?
A. Dispersion forces
B. Dipole-dipole forces
C. Hydrogen bonding
D. X-forces
A. Dispersion forces
What are the mass percent of an ammonium carbonate solution prepared by dissolving solid into 39.5 grams of water?
A. 84.1%
B. 72.7%
C. 45.7%
D. 54.3%
E. None of the above
C. 45.7%
CH3-C=O-CH3
Ketone and Propanone
How many carbon atoms would a straight chain or branched alkane that has 26 hydrogen atoms contain?
A. 26
B. 12
C. 13
D. 14
E. None of the above
B. 12
Rank the compounds NH3, CH4, and PH3 in order of increasing boiling point.
A. NH3<CH4<PH3
B. CH4<NH3<PH3
C. NH3<PH3<CH4
D. CH4<PH3<NH3
E. PH3<NH3<CH4
D. CH4<PH3<NH3
Which of the these does not always have a double bond?
A. Amine
B. Aldehyde
C. Alkene
D. Carboxylic Acid
A. Amine
How many millimeters of 0.755 M H2SO3 solution is needed to neutralize 55.0 mL of 2.50 M KOH solution?
Given: 2 KOH (aq) + H2SO4 (aq) = 2 H2O + K2SO4
91.1 mL
CH3-CH2-NH2
Amine and Ethylamine
Which carbon is classified as a hydrocarbon?
A. Ethane
B. Ethanol
C. Chloroethane
D. Ethanoic Acid
A. Ethane
Copper is which type of solid?
A. Molecular solid
B. Ionic solid
C. Covalent atomic solid
D. Nonbonding atomic solid
E. Metallic atomic solid
E. Metallic atomic solid
A substance that acts as an acid OR a base is called:
A. Isoprotic
B. A salt.
C. Amphoteric
D. Hydrophilic
E. None of the above
C. Amphoteric
How many moles of KOH are contained in 750 mL of 5.00 M KOH solution?
A. 6.67%
B. 3.75x103 mol
C. 3.75 mol
D. None of the above
C. 3.75 mol
CH3-C=O-O-CH2-CH3
Ester and Ethyl Ethanoate
Which group of organic molecules have pleasant aromas and are widely used in perfumes? Bonus if you can name one not listed.
A. Amine
B. Carboxylic Acid
C. Ester
D. Ether
C. Ester
NaCl is which type of solid?
A. Molecular solid
B. Ionic solid
C. Covalent atomic solid
D. Nonbonding atomic solid
E. Metallic atomic solid
B. Ionic solid
Which of the following statements about water are TRUE?
A. Water can act as an acid.
B. Water can act as a base.
C. The conjugate base of water is OH-
D. The conjugate acid of water is H3O+.
E. All of the above are true.
E. All of the above are true.
How many grams of CaCl2 are in 35.00 mL of a 0.237 M solution of CaCl2? (molar mass of CaCl2 is 111 g/mol)
0.921g CaCl2
CH3-CH2-O-CH3-CH2
Ether and Diethyl Ether