# Shared Flashcard Set

## Details

Lab 1: Density - A Phyiscal Property of Matter
Lab 1: Density - A Phyiscal Property of Matter
10
Chemistry
12/16/2011

Term
 __________ is a physical property which represents the relationship between the mass of a substance and its volume.
Definition
 1) Density
Term
 Density = __________ / __________
Definition
 1) Mass2) Volume
Term
 Density is commonly expressed in the following units for the following substances:Solids = __________ / __________Liquids = __________ / __________Gases = __________ / __________
Definition
 1) g / cm^32) g / mL3) g / L
Term
 Volume is proportional to __________ x __________ x __________
Definition
 1) Length2) Width3) Height
Term
 Normally the volume of an object can be found by the displacement of __________: __________ is added to a graduated cylinder and the volume is read.After the initial volume has been obtained, an object can be dropped into the graduated cylinder, further displacing the __________.The volume is simply the difference between the new volume with the object and that of the original volume.
Definition
 1) Water2) Water3) Water
Term
 A third method for determining volume is by __________ method.Objects in water are lighter (__________ less but have the same __________) than in air. This is because the displaced liquid pushes back on the object with a force equal to the __________ of the liquid displaced. The object will have an apparent loss of __________ equal to the mass of the __________ displaced.
Definition
 1) Archimedes2) Weigh3) Mass4) Mass5) Mass6) Liquid
Term
 In making laboratory experiments, experimental errors occur because of:1. The __________ being used, or2. __________ error.
Definition
 1) Equipment2) Human
Term
 __________ refers to how close a measurement is to the accepted value or theoretical value.Errors related to this are called "percentage error" are calculated by the equation:(|__________ value - __________ value| / __________ value) x100%
Definition
 1) Accuracy2) (|Actual value - Theoretical value| / Theoretical value) x100%
Term
 __________ refers to the repeatability of a measurement.
Definition
 1) Precision
Term
 __________ refers to the scale used to measure something.
Definition
 1) Sensitivity
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