Chemistry and Physics
for Nurse Anesthesia
Exam 1
** Expert-Verified Explanation
** Questions with Verified Answer
** New Edition |Updated
** Guaranteed Pass
** 100% Correct Answers | Graded A+
,What are the order of operations? PEMDAS
Parentheses
Exponents
Multiply
Division
Addition
Subtraction
What is algebra? Solving equations for an unknown quantity
What is scientific notation uses exponents for handling really large or really small numbers
What is a mantissa? whole number and decimal part of a value not including place holders and
exponents
What kind of exponent does a number >1 have? Postive exponent
What kind of exponent does a number <1 have? Negative exponent
What is a significant figure? digits in a measured value that have physical meaning and can be reproduced
Why do we use significant figures? We use significant figures so scientists don't say that they're measurements are
more precise than they really are.
What are exact numbers? numbers not obtained through measurements-- easily countable and hold value
What are the rules of significant figures? 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 Possibly 2 or 5.. depends if they meant to place a decimal
How many significant figures are in 705.001? 6
How many significant figures are in the measurement 4 significant figures
811.40 grams?
What is accuracy? how close a measurement is to the true value
An agreement between experimental data and "true value"
How do you assess accuracy? With percent error
, How do you calculate precent error? ((measured value- true value)/true value) X100
What is precision? agreement between replicable measurements
How do we improve precision? by careful lab technique
If a measurement is repeated, does this mean it is No, it just means that it is reproducable-- getting closer to being precise.
precise?
How do we quantify precision? By looking at standard deviation
the smaller the ratio of SD, the better the precision
What is the metric system sometimes called? MKS system (meter, kilogram, second)
What is the base unit for length? meter
What is the base unit for weight? kilogram
What is the base unit for time? second
what is the base unit for temperature? kelvin
what is the base unit for an amount of a material?> mol
What is the base unit for volume? liter
What is giga? 1x10^9
What is mega? 1x10^6
What is kilo? 1X10^3
What is deci? 1x10^-1
for Nurse Anesthesia
Exam 1
** Expert-Verified Explanation
** Questions with Verified Answer
** New Edition |Updated
** Guaranteed Pass
** 100% Correct Answers | Graded A+
,What are the order of operations? PEMDAS
Parentheses
Exponents
Multiply
Division
Addition
Subtraction
What is algebra? Solving equations for an unknown quantity
What is scientific notation uses exponents for handling really large or really small numbers
What is a mantissa? whole number and decimal part of a value not including place holders and
exponents
What kind of exponent does a number >1 have? Postive exponent
What kind of exponent does a number <1 have? Negative exponent
What is a significant figure? digits in a measured value that have physical meaning and can be reproduced
Why do we use significant figures? We use significant figures so scientists don't say that they're measurements are
more precise than they really are.
What are exact numbers? numbers not obtained through measurements-- easily countable and hold value
What are the rules of significant figures? 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 Possibly 2 or 5.. depends if they meant to place a decimal
How many significant figures are in 705.001? 6
How many significant figures are in the measurement 4 significant figures
811.40 grams?
What is accuracy? how close a measurement is to the true value
An agreement between experimental data and "true value"
How do you assess accuracy? With percent error
, How do you calculate precent error? ((measured value- true value)/true value) X100
What is precision? agreement between replicable measurements
How do we improve precision? by careful lab technique
If a measurement is repeated, does this mean it is No, it just means that it is reproducable-- getting closer to being precise.
precise?
How do we quantify precision? By looking at standard deviation
the smaller the ratio of SD, the better the precision
What is the metric system sometimes called? MKS system (meter, kilogram, second)
What is the base unit for length? meter
What is the base unit for weight? kilogram
What is the base unit for time? second
what is the base unit for temperature? kelvin
what is the base unit for an amount of a material?> mol
What is the base unit for volume? liter
What is giga? 1x10^9
What is mega? 1x10^6
What is kilo? 1X10^3
What is deci? 1x10^-1
