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Chemistry Final Sem1

TermDefinition
UNIT 1: Precision How close a series of measurements are to one another (how "reproducible")
UNIT 1: Accuracy How close the measurement is to the accepted value (How "Correct")
UNIT 1: Sig Figs (Significant Figures) All the digits which are known in a measurement, plus the last digit, which is estimated.
UNIT 1: Quantitative Data Count/Must require a number or data set (preferred because it can be tested)
UNIT 1: Qualitative Data Quality/Subjective and descriptive, use sense (see, smell, touch, taste or hear)
UNIT 1: Scientific Notation Number written as the product of two numbers: coefficient multiplied by 10 raised to a power (Standard Exponential Form)
UNIT 1: Estimated Digit The last Digit is the... (e.g. 2.00000 L = Final 0 or 2.05 L = Final 5)
UNIT 1: Absent Decimals Go Atlantic (Right) to Pacific (Left) (e.g. 200 has 1 Sig Fig)
UNIT 1: Present Decimals Go Pacific (Left) to Atlantic (Right) e.g. 2.50 has 3 Sig Figs
UNIT 1: Place Holder Zeros These zeros are not significant (e.g. 0.0025 or 100)
UNIT 1: Experimental Value - Accepted Value What is the Formula for Error
UNIT 1: Experimental Value the measured value/Test results
UNIT 1: Error Has to do with accuracy/Error can be negative
UNIT 1: Percent Error ( I error I / Accepted Value ) x 100 =
UNIT 1: Accepted Value Actual Value/ the "right" or correct answer based on a reliable reference
UNIT 1: Multiply/Divide Fewest total Sig Figs when you... two units
UNIT 1: Add/Subtract Fewest decimal places when you... two units
UNIT 1: M/D x V The triangle that is density formula
UNIT 2: Distillation
UNIT 2: Physical Property
UNIT 2: Chemical Property
UNIT 2: Physical Change
Created by: user-2011013
 

 



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