Creighton PHA 317 Pharmaceutics Exam 1
UPDATED ACTUAL Questions and
CORRECT Answers
Matter is - CORRECT ANSWER - anything that has weight and occupies space
The Three Fundamental Dimensions - CORRECT ANSWER - length (cm), mass (g) and
time (s)
4 derived dimensions - CORRECT ANSWER - density and specific gravity
force
pressure
work,enerhy, heat
density= - CORRECT ANSWER - mass/volume
specific gravity= - CORRECT ANSWER - density of substance/density of water.
force= - CORRECT ANSWER - mass x acceleration (cm/s^2)
The weight of a body is equal to - CORRECT ANSWER - force exerted on that body due
to gravity
The weight of a substance with a mass of 1 g is - CORRECT ANSWER - 1 g x 981
cm/sec2 = 981 g cm/sec2, or 981 dynes
Pressure is - CORRECT ANSWER - force applied per unit area (g / (cm sec2).
, work= - CORRECT ANSWER - force X distance
expressed in Joules
energy is - CORRECT ANSWER - the capacity to do work
matter consists of - CORRECT ANSWER - elements and compounds
How are elements different from compounds - CORRECT ANSWER - elements are made
up of a single element. Compounds are made of two or more elements. smallest unit of of an
element is an atom.compounds is elements composed of atoms
Three fundamental units of an atom - CORRECT ANSWER - protons, neutrons and
electrons
Describe the bohr theory of atomic structure - CORRECT ANSWER - atoms have nucleus
that contain neutral neutrons positive protons and electrons orbit the nucleus in well defined
orbits designated by their quantum numbers
List the 2 main theories that describe molecular structure and state the differences between them
- CORRECT ANSWER - valence bond theory and molecular orbit theory. valence bond
theory- molecules consist of individual atons bound together due to unpaired electrons in
outermost orbit. molecular orbit theory is all orbitals of the atoms overlap and coalesce to form
molecules
state the difference between electrovalen commpounds and covalent compounds - CORRECT
ANSWER - electrovalent result from a complete transfer of electrons from one atom to
another. covalent results from sharing electrons
what is a dipole moment - CORRECT ANSWER - charge polarization in molecules
usually resulting from abscence of symmetry
UPDATED ACTUAL Questions and
CORRECT Answers
Matter is - CORRECT ANSWER - anything that has weight and occupies space
The Three Fundamental Dimensions - CORRECT ANSWER - length (cm), mass (g) and
time (s)
4 derived dimensions - CORRECT ANSWER - density and specific gravity
force
pressure
work,enerhy, heat
density= - CORRECT ANSWER - mass/volume
specific gravity= - CORRECT ANSWER - density of substance/density of water.
force= - CORRECT ANSWER - mass x acceleration (cm/s^2)
The weight of a body is equal to - CORRECT ANSWER - force exerted on that body due
to gravity
The weight of a substance with a mass of 1 g is - CORRECT ANSWER - 1 g x 981
cm/sec2 = 981 g cm/sec2, or 981 dynes
Pressure is - CORRECT ANSWER - force applied per unit area (g / (cm sec2).
, work= - CORRECT ANSWER - force X distance
expressed in Joules
energy is - CORRECT ANSWER - the capacity to do work
matter consists of - CORRECT ANSWER - elements and compounds
How are elements different from compounds - CORRECT ANSWER - elements are made
up of a single element. Compounds are made of two or more elements. smallest unit of of an
element is an atom.compounds is elements composed of atoms
Three fundamental units of an atom - CORRECT ANSWER - protons, neutrons and
electrons
Describe the bohr theory of atomic structure - CORRECT ANSWER - atoms have nucleus
that contain neutral neutrons positive protons and electrons orbit the nucleus in well defined
orbits designated by their quantum numbers
List the 2 main theories that describe molecular structure and state the differences between them
- CORRECT ANSWER - valence bond theory and molecular orbit theory. valence bond
theory- molecules consist of individual atons bound together due to unpaired electrons in
outermost orbit. molecular orbit theory is all orbitals of the atoms overlap and coalesce to form
molecules
state the difference between electrovalen commpounds and covalent compounds - CORRECT
ANSWER - electrovalent result from a complete transfer of electrons from one atom to
another. covalent results from sharing electrons
what is a dipole moment - CORRECT ANSWER - charge polarization in molecules
usually resulting from abscence of symmetry
