Mixtures
Sig Figs
Percent Error
Accuracy/Precision
Random
100
This type of mixture is composed of evenly distributed particles making a uniform composition.
What is a Homogeneous Mixture
100
"Sig figs" stands for this.
What is Significant Figures
100
What is the Percent Error Equation?
What is experimental value-accepted value/accepted value x 100
100
What is the term to describe how close a measurement is to the true value
What is accuracy
100
This is the equation for density
What is D = M/V
200
What is the definition of filtration?
What is the process that separates a solid from the liquid in a heterogeneous mixture.
200
These are always sig figs.
Non-zero Numbers
200
Define Percent Error.
What is the percent that a measured value differs from the accepted value
200
Define Precision.
What is the degree to which repeated measurements show the same result.
200
A process of converting measurements from one unit to another
What is Dimensional Analysis
300
The technique used to separate the components/dyes out of a mixture
What is chromatography.
300
Sig Figs Rules for Multiplication and Division
What is answer with the least amount of sig figs from values in problem
300
What is the reason why a percent error will never be a negative value?
What is an absolute sign in the numerator, making the values positive.
300
One should estimate one number place past this scale when taking measurements.
What is the minor scale.
300
The term for changing from a solid directly to a gas.
What is sublimation.
400
This is a process that separates substances in a solution based on their boiling points.
What is distillation
400
These are the sig fig rules for addition and subtraction.
What is the answer has the same number of decimal places as there are in the measurement with the fewest decimal places
400
Calculate the percent error for a experimental value of 5.78g and an actual value of 5.92g.
What is 2.37 % error.
400
Based on the information below this is accurate, precise, both, or neither.
Mass of object: 6.03 g
Measurements: 6.03 g, 5.89g, 6.04 g, 6.14g
What is accurate only.
400
This is the branch of chemistry that studies non-carbon molecules.
What is inorganic Chemistry
500
This process is used to separate a solid from a liquid from heating up the solution and then cooling it down.
What is crystallization.
500
This is rule #2 of sig figs.
What is zeros at the beginning of a number are not significant
500
This is the experimental value for an object that has a mass of 5.5g and a percent error of 10%.
What is 6.05 grams.
500
This picture is an example of what.
What is precision.
500
These are the two phases of chromatography.
What is the mobile phase and the stationary phase.