Chapter 1
Chemistry 101 with Perry at Northern Virginia Community College
About this deck
By: JoAnn O'Brien
Textbook:
Study Guide for General, Organic and Biological Chemistry: Structures of Life
Created: 2011-09-18
Size: 24 flashcards
Views: 4
Textbook:
Study Guide for General, Organic and Biological Chemistry: Structures of LifeCreated: 2011-09-18
Size: 24 flashcards
Views: 4
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Displacement of Volume
when a solid is submerged in water and it displaces its own volume of water
Volume
the amount of space an substance occupies
Mass
measure of the quantity of material it contains
Temperature
how hot or how cold something is
Water boils at ______K, ______ degrees Celsius, and _____ degrees Fahrenheit
373, 100, 212
Water freezes at ______K, ______ degrees Celsius, and _______degrees Fahrenheit
273, 0, 32
Measured Numbers
numbers you obtain when you measure a quantity such as your height, weight, or temperature
Significant Figures
all the digits including the estimated digit
A number is a Significant Figure if it is
not a zero
zero between nonzero digits
zero at the end of a number
any digit in the coefficient of a number written in Scientific Notation
zero between nonzero digits
zero at the end of a number
any digit in the coefficient of a number written in Scientific Notation
A number is not a Significant Figure if it is
at the beginning of a decimal number
used as a placeholder in a large number without a decimal point
used as a placeholder in a large number without a decimal point
Exact Numbers
numbers obtained by counting items or from a definition that compares two units in the same measuring system
If the problem deals with addition and subtraction you round off to the nearest________ _____
decimal point
If the problem deals with multiplication and division you round off to the nearest ________ ______
Significant Figure
Equalities
Show the relationship between two units that measure the same quantity
Prefix: k
kilo-
Prefix: d
deci-
Prefix: c
centi-
Prefix: m
milli-
Prefix: u
micro-
given quantity X ____________ ______________ = desired quantity
conversion factor
What are the four steps to solving a problem using conversion factors?
Given/Need
Plan
Equalities/Conversion Factors
Set up Problem
Plan
Equalities/Conversion Factors
Set up Problem
Density
compare the mass of the object to the volume of the object
Specific Gravity
ratio between the density of a substance and the density of water
% means ______
parts per 100
About this deck
By: JoAnn O'Brien
Textbook: Study Guide for General, Organic and Biological Chemistry: Structures of Life
Created: 2011-09-18
Size: 24 flashcards
Views: 4
Textbook:
Study Guide for General, Organic and Biological Chemistry: Structures of LifeCreated: 2011-09-18
Size: 24 flashcards
Views: 4
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis
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