# Shared Flashcard Set

## Details

Chemical Building Blocks, Section 1-2
Measuring Matter
12
Chemistry
12/08/2009

Term
 What is mass?
Definition
 the amount of matter in an object
Term
 What is the unit used for mass?
Definition
 grams (g)
Term
 What is the lab tool that is used to measure mass?
Definition
 a triple beam balance
Term
 Define "volume."
Definition
 the amount of space that matter (an object) occupies
Term
 To find the volume of a REGULARLY shaped object, what tool would you use, what is the formula, and what unit would be used?
Definition
 TOOL: a ruler FORMULA: multiply the length, width, and height (L X W X H)UNIT: cm3
Term
 To find the volume of a IRREGULARLY shaped object, what tool would you use, what is the procedure, and what unit would be used?
Definition
 TOOL: a graduated cylinder PROCEDURE: volume displacement UNIT: mL
Term
 How do you do volume displacement?
Definition
 -take a graduated cylinder, -fill it with water to a certain amount, -place the object in the graduated cylinder, and -subtract the starting and final volumes
Term
 What is density?
Definition
 the amount of mass there is in a specific volume
Term
 What is the formula for density?
Definition
 D = M/V
Term
 What are the units for density if: a)the volume was of a REGULARLY shaped object b)the volume was of a IRREGULARLY shaped object
Definition
 g/cm3 (density of an object that is regular)g/mL (density of an object that is irregular)
Term
 Density is a characteristic property; meaning the density of a substance never changes. Why is the characteristic property of a substance considered useful information?
Definition
 It can be used to identify substances or objects.
Term
 What is the density of water?
Definition
 1.0 g/mL (This means that every milliliter of water has a mass of 1 gram)
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