PHA 317 Exam 1 | Questions and Answers (Complete Solutions)
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Course
PHA 317
Institution
PHA 317
PHA 317 Exam 1 | Questions and Answers (Complete Solutions) How closely a measured value is to the correct value is ___ Accuracy How closely individual measurements are relative to each other is ___ Precision Regarding significant figures, ALL nonzero digits are ___ (i.e. - 12.768) Significant Re...
How closely a measured value is to the correct value is ___
Accuracy
How closely individual measurements are relative to each other is ___
Precision
Regarding significant figures, ALL nonzero digits are ___
(i.e. - 12.768)
Significant
Regarding significant figures, a zero is ___ when followed by a nonzero number.
(i.e. - 12.076)
Significant
Regarding significant figures, a zero after a decimal and before a nonzero number is
___
(i.e. - 0.02)
not significant
Regarding significant figures, a zero after a decimal and following a nonzero number is
___
(i.e. - 0.20)
Significant
Regarding significant figures, a zero before a decimal is ___
either significant or not significant depending on increments of the tool used for
measuring (10 g increments vs 1 g increments on a scale)
NLT means ___
not less than
NMT means ___
no more than
NLT and NMT are abbreviations used when talking about ___
USP monographs
Rounding is ___ with USP monographs.
not acceptable
89.9% can be equal to ___ but not ___
90% ; 90.0%
,Mode is ___
most frequently occurring value
Mean is ___
the average of all values
Median is ___
the middle-most value
Standard deviation is ___
A description of how much variation there is in a data set
What mathematical method utilizes units and ratios between them to reach a desired
quantity with a specific/required unit?
Dimensional analysis
The three fundamental dimensions include ___ and this is called the ___
length, mass, and time ; cgs system
The definite unit of length is ___
centimeters (cm)
The definite unit of mass is ___
grams (g)
The definite unit of time is ___
seconds (sec)
An angstrom is equal to ___ and measures ___
10^-10 meter ; microscopic distances
The four derived dimensions typically discussed in pharmacy calculations include:
1. density and specific gravity,
2. force,
3. pressure, &
4. work, energy, and heat
Density is equal to ___
mass / volume
Specific gravity is equal to ___
density of a substance / density of water
Units of density are written as ___ in the cgs system
g/cm^3 (or g/cc)
, Units of density are written as ___ in the SI system
Kg / m^3
Force is equal to ___
mass x acceleration
Units for force are ___
dyne
[ or (g*cm)/ sec^2 ]
The force exerted on the body due to gravity is called ___
Weight
With 1 gram of mass, weight is equal to ___
981 dyne (g*cm/s^2)
With 1 kilogram of mass, weight is equal to ___
9.81 Newton (kg*m/sec^2)
Pressure is equal to ___
force / area
The unit for pressure is ___
dynes / cm^2
[ g / cm(sec^2) ]
Work is equal to ___
force x distance
The cgs unit for work is ___ which is equal to ___
ergs ; dyne*cm
The SI unit of work is ___ which is equal to ___
joules (J) ; 10^7 ergs
Energy is the ___
capacity to do work
Heat is typically written in cgs units of ___ or ___
calorie or kilocalorie
Heat and work are ___ forms of energy
Equivalent
Intravenous CSPs are typically allowed ___ variance
±5%
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