Subatomic Particles
Kinetic Molecular Theory/Gas Laws
Solving Using Chemical Equations
Miscellaneous
100
Neutrons have what kind of a charge?
Neutral/none
100
What does STP mean?
Standard Temperature and Pressure
100
The boiling point for a sample of a molecular compound is 80.° C at standard pressure. The heat of fusion Hf, of this compound is 127 joules per gram.
Determine the amount of heat required to completely melt a 50.0-gram sample of this molecular compound at its melting point.
6350J
200
Where are electrons located?
Orbitals
200
What are the values of STP?
0C, 273K
101.3kpa, 1atm
200
What is the percent by mass of oxygen in CH3COOH (gram-formula mass = 60. g/mol)
53%
300
The subatomic particles in the nucleus of an oxygen atom include
neutrons and protons
300
Given the following:
Compare the average kinetic energy of the gas in diagram 1 to the gas in diagram 2.
Equal
300
A NaoH Solution and an acid-base indicator are used to determine the molarity of an HCl(aq) solution. A 15.0 milliliter sample of the HCl(aq) is exactly neutralized by a 30.0mL of 0.010M NaOH(aq).
Using the titration data, determine the concentration of the HCl(aq) solution.
0.02M
400
What is true about the charges and amount of protons and electrons?
They have opposite charges and are equal in number
OR
They have positive and negative charges; are equal in number
400
Given the following:
Determine the volume of the gas in diagram 2 when the conditions are changed to STP.
0.970-0.983L
400
A technician determined the percent natural abundance of Cu-65 in a sample to be 31.47%. Determine the percent error for this percent natural abundance of Cu-65 compared to the accepted value shown in the table.
2.0-2.01%
400
State which process occurs at the anode in an electrochemical cell and which process occurs at the cathode.
Oxidation occurs at the anode and reduction occurs at the cathode.
500
An atom of C-12 in the ground state and an atom of C-13 in the ground state are defined as isotopes of carbon because these atoms have the same number of protons and
Different numbers of neutrons
500
Given the following:
Determine the pressure given in diagram 1 in atmospheres.
0.59-0.6atm
500
State how nuclear reactions such as fission, produce a large amount of energy/heat.
Mass is converted to energy.