Chemistry and Physics for Nurse
Anesthesia Exam 1
What are the order of operations? - CORRECT ANSWER ✔✔✔ PEMDAS
Parentheses
Exponents
Multiply
Division
Addition
Subtraction
What is algebra? - CORRECT ANSWER ✔✔✔ Solving equations for an unknown quantity
What is scientific notation - CORRECT ANSWER ✔✔✔ uses exponents for handling really large or really
small numbers
What is a mantissa? - CORRECT ANSWER ✔✔✔ whole number and decimal part of a value not
including place holders and exponents
What kind of exponent does a number >1 have? - CORRECT ANSWER ✔✔✔ Postive exponent
What kind of exponent does a number <1 have? - CORRECT ANSWER ✔✔✔ Negative exponent
What is a significant figure? - CORRECT ANSWER ✔✔✔ digits in a measured value that have physical
meaning and can be reproduced
Why do we use significant figures? - CORRECT ANSWER ✔✔✔ We use significant figures so scientists
don't say that they're measurements are more precise than they really are.
What are exact numbers? - CORRECT ANSWER ✔✔✔ numbers not obtained through measurements--
easily countable and hold value
What are the rules of significant figures? - CORRECT ANSWER ✔✔✔ 1. All nonzero numbers are
significant.
2. All zeros that are in between nonzero numbers are significant.
3. All trailing zeros that come after the last nonzero digit are significant as long as there is a decimal in
the number.
4. All leading zeros are not significant. Leading zeros are zeros that come before the first nonzero
number.
How many significant figures are in 37,000 - CORRECT ANSWER ✔✔✔ Possibly 2 or 5.. depends if they
meant to place a decimal
,How many significant figures are in 705.001? - CORRECT ANSWER ✔✔✔ 6
How many significant figures are in the measurement 811.40 grams? - CORRECT ANSWER ✔✔✔ 4
significant figures
What is accuracy? - CORRECT ANSWER ✔✔✔ how close a measurement is to the true value
An agreement between experimental data and "true value"
How do you assess accuracy? - CORRECT ANSWER ✔✔✔ With percent error
How do you calculate precent error? - CORRECT ANSWER ✔✔✔ ((measured value- true value)/true
value) X100
What is precision? - CORRECT ANSWER ✔✔✔ agreement between replicable measurements
How do we improve precision? - CORRECT ANSWER ✔✔✔ by careful lab technique
If a measurement is repeated, does this mean it is precise? - CORRECT ANSWER ✔✔✔ No, it just means
that it is reproducable-- getting closer to being precise.
How do we quantify precision? - CORRECT ANSWER ✔✔✔ By looking at standard deviation
the smaller the ratio of SD, the better the precision
What is the metric system sometimes called? - CORRECT ANSWER ✔✔✔ MKS system (meter, kilogram,
second)
What is the base unit for length? - CORRECT ANSWER ✔✔✔ meter
What is the base unit for weight? - CORRECT ANSWER ✔✔✔ kilogram
What is the base unit for time? - CORRECT ANSWER ✔✔✔ second
what is the base unit for temperature? - CORRECT ANSWER ✔✔✔ kelvin
what is the base unit for an amount of a material?> - CORRECT ANSWER ✔✔✔ mol
What is the base unit for volume? - CORRECT ANSWER ✔✔✔ liter
What is giga? - CORRECT ANSWER ✔✔✔ 1x10^9
What is mega? - CORRECT ANSWER ✔✔✔ 1x10^6
What is kilo? - CORRECT ANSWER ✔✔✔ 1X10^3
What is deci? - CORRECT ANSWER ✔✔✔ 1x10^-1
What is centi? - CORRECT ANSWER ✔✔✔ 1x10^-2
What is Milli? - CORRECT ANSWER ✔✔✔ 1x10^-3
What is micro? - CORRECT ANSWER ✔✔✔ 1x10^-6
, What is nano? - CORRECT ANSWER ✔✔✔ 1x10^-9
What is 1 inch equal to in cm? - CORRECT ANSWER ✔✔✔ 2.54 cm
What is 1 mile in ft? - CORRECT ANSWER ✔✔✔ 5280 feet
What is 1 mile in km? - CORRECT ANSWER ✔✔✔ 1.609 km
What is 1 lb in OZ and kg? - CORRECT ANSWER ✔✔✔ 16 oz
0.454 kg
What is 1 oz to g? - CORRECT ANSWER ✔✔✔ 28.35g
What is one grain to mg? - CORRECT ANSWER ✔✔✔ 64.8 mg
What is 1 kg to lbs? - CORRECT ANSWER ✔✔✔ 2.2
What is 1L equal to in meters? - CORRECT ANSWER ✔✔✔ 1 cubic decimeter
What is one gallon equal to in L? - CORRECT ANSWER ✔✔✔ 3.79
What is 1mL equal to in volume? - CORRECT ANSWER ✔✔✔ 1cm^3
What is temperature? - CORRECT ANSWER ✔✔✔ how hot or cold something is
What is absolute zero temp? - CORRECT ANSWER ✔✔✔ 0K
Nothing lower than it
What is the formula to convert K to C? - CORRECT ANSWER ✔✔✔ K= 273.15 + C
What is the formula to convert C to F? - CORRECT ANSWER ✔✔✔ F= (Cx1.8) +32
What is the formula to convert F to C? - CORRECT ANSWER ✔✔✔ C= (F-32)/1.8
What is 0K equal to in F and C? - CORRECT ANSWER ✔✔✔ 0K = -273.15C = -459.67F
What is a conversion factor? - CORRECT ANSWER ✔✔✔ a statement of equality between two
measurements of the same object/property
What is density? - CORRECT ANSWER ✔✔✔ ratio of the mass to volume
What is the equation for density? - CORRECT ANSWER ✔✔✔ Density = mass/volume
What is specific gravity? - CORRECT ANSWER ✔✔✔ ratio between the density of a substance and the
density of water
If specific gravity of a substance is >1, what does that mean? - CORRECT ANSWER ✔✔✔ The object is
denser than water and will not float
If specific gravity of a substance is <1, what does it mean? - CORRECT ANSWER ✔✔✔ It is less dense
than water
What is a solution of medications formula? - CORRECT ANSWER ✔✔✔ % solution in 100mL
Anesthesia Exam 1
What are the order of operations? - CORRECT ANSWER ✔✔✔ PEMDAS
Parentheses
Exponents
Multiply
Division
Addition
Subtraction
What is algebra? - CORRECT ANSWER ✔✔✔ Solving equations for an unknown quantity
What is scientific notation - CORRECT ANSWER ✔✔✔ uses exponents for handling really large or really
small numbers
What is a mantissa? - CORRECT ANSWER ✔✔✔ whole number and decimal part of a value not
including place holders and exponents
What kind of exponent does a number >1 have? - CORRECT ANSWER ✔✔✔ Postive exponent
What kind of exponent does a number <1 have? - CORRECT ANSWER ✔✔✔ Negative exponent
What is a significant figure? - CORRECT ANSWER ✔✔✔ digits in a measured value that have physical
meaning and can be reproduced
Why do we use significant figures? - CORRECT ANSWER ✔✔✔ We use significant figures so scientists
don't say that they're measurements are more precise than they really are.
What are exact numbers? - CORRECT ANSWER ✔✔✔ numbers not obtained through measurements--
easily countable and hold value
What are the rules of significant figures? - CORRECT ANSWER ✔✔✔ 1. All nonzero numbers are
significant.
2. All zeros that are in between nonzero numbers are significant.
3. All trailing zeros that come after the last nonzero digit are significant as long as there is a decimal in
the number.
4. All leading zeros are not significant. Leading zeros are zeros that come before the first nonzero
number.
How many significant figures are in 37,000 - CORRECT ANSWER ✔✔✔ Possibly 2 or 5.. depends if they
meant to place a decimal
,How many significant figures are in 705.001? - CORRECT ANSWER ✔✔✔ 6
How many significant figures are in the measurement 811.40 grams? - CORRECT ANSWER ✔✔✔ 4
significant figures
What is accuracy? - CORRECT ANSWER ✔✔✔ how close a measurement is to the true value
An agreement between experimental data and "true value"
How do you assess accuracy? - CORRECT ANSWER ✔✔✔ With percent error
How do you calculate precent error? - CORRECT ANSWER ✔✔✔ ((measured value- true value)/true
value) X100
What is precision? - CORRECT ANSWER ✔✔✔ agreement between replicable measurements
How do we improve precision? - CORRECT ANSWER ✔✔✔ by careful lab technique
If a measurement is repeated, does this mean it is precise? - CORRECT ANSWER ✔✔✔ No, it just means
that it is reproducable-- getting closer to being precise.
How do we quantify precision? - CORRECT ANSWER ✔✔✔ By looking at standard deviation
the smaller the ratio of SD, the better the precision
What is the metric system sometimes called? - CORRECT ANSWER ✔✔✔ MKS system (meter, kilogram,
second)
What is the base unit for length? - CORRECT ANSWER ✔✔✔ meter
What is the base unit for weight? - CORRECT ANSWER ✔✔✔ kilogram
What is the base unit for time? - CORRECT ANSWER ✔✔✔ second
what is the base unit for temperature? - CORRECT ANSWER ✔✔✔ kelvin
what is the base unit for an amount of a material?> - CORRECT ANSWER ✔✔✔ mol
What is the base unit for volume? - CORRECT ANSWER ✔✔✔ liter
What is giga? - CORRECT ANSWER ✔✔✔ 1x10^9
What is mega? - CORRECT ANSWER ✔✔✔ 1x10^6
What is kilo? - CORRECT ANSWER ✔✔✔ 1X10^3
What is deci? - CORRECT ANSWER ✔✔✔ 1x10^-1
What is centi? - CORRECT ANSWER ✔✔✔ 1x10^-2
What is Milli? - CORRECT ANSWER ✔✔✔ 1x10^-3
What is micro? - CORRECT ANSWER ✔✔✔ 1x10^-6
, What is nano? - CORRECT ANSWER ✔✔✔ 1x10^-9
What is 1 inch equal to in cm? - CORRECT ANSWER ✔✔✔ 2.54 cm
What is 1 mile in ft? - CORRECT ANSWER ✔✔✔ 5280 feet
What is 1 mile in km? - CORRECT ANSWER ✔✔✔ 1.609 km
What is 1 lb in OZ and kg? - CORRECT ANSWER ✔✔✔ 16 oz
0.454 kg
What is 1 oz to g? - CORRECT ANSWER ✔✔✔ 28.35g
What is one grain to mg? - CORRECT ANSWER ✔✔✔ 64.8 mg
What is 1 kg to lbs? - CORRECT ANSWER ✔✔✔ 2.2
What is 1L equal to in meters? - CORRECT ANSWER ✔✔✔ 1 cubic decimeter
What is one gallon equal to in L? - CORRECT ANSWER ✔✔✔ 3.79
What is 1mL equal to in volume? - CORRECT ANSWER ✔✔✔ 1cm^3
What is temperature? - CORRECT ANSWER ✔✔✔ how hot or cold something is
What is absolute zero temp? - CORRECT ANSWER ✔✔✔ 0K
Nothing lower than it
What is the formula to convert K to C? - CORRECT ANSWER ✔✔✔ K= 273.15 + C
What is the formula to convert C to F? - CORRECT ANSWER ✔✔✔ F= (Cx1.8) +32
What is the formula to convert F to C? - CORRECT ANSWER ✔✔✔ C= (F-32)/1.8
What is 0K equal to in F and C? - CORRECT ANSWER ✔✔✔ 0K = -273.15C = -459.67F
What is a conversion factor? - CORRECT ANSWER ✔✔✔ a statement of equality between two
measurements of the same object/property
What is density? - CORRECT ANSWER ✔✔✔ ratio of the mass to volume
What is the equation for density? - CORRECT ANSWER ✔✔✔ Density = mass/volume
What is specific gravity? - CORRECT ANSWER ✔✔✔ ratio between the density of a substance and the
density of water
If specific gravity of a substance is >1, what does that mean? - CORRECT ANSWER ✔✔✔ The object is
denser than water and will not float
If specific gravity of a substance is <1, what does it mean? - CORRECT ANSWER ✔✔✔ It is less dense
than water
What is a solution of medications formula? - CORRECT ANSWER ✔✔✔ % solution in 100mL
