Intro Flashcards
Explain matter
Anything with mass and occupies space
Explain molecule
Smallest partial of a pure substance that has properties of that substance and is capable of a STABLE INDEPENDENT EXISTENCE
Explain atom
Is the limit of a chemical subdivision of a molecule
What’s an homoatomic molecule
The stable, independent form of elements i.e. o2
What’s a heteroatomic molecule
Stable independent COMPOUNDS i.e. co2
What’s homogeneous
Solution
What’s heterogeneous
Matter in this form i.e. Sand, gravel or a tomato
1 inch = ? Cm
2.54
Volume
Cubed, height x width x length
1 liter = ? cm
1000 cm(3) third power
1 cm(3) third power = ? mL
1 mL
1 teaspoon = ? mL
5 mL
1 fluid ounce = ? mL
30 mL
1 quart = ? mL
947 mL
1 pound = ? Grams
454 g
1 kg (killogram) = ? Lbs
2.2 lbs
Conversation for Fahrenheit to Celsius
F= 1.8 x (C) + 32
Def of calorie
Small c
The amount of energy required to raise the temperature of one centimeter cubed of water, one degree Celsius
Define element
Element molecules are homoatomic molecules, molecules with only one kind of atom
i.e. Helium= He or hydrogen=H
Define compound
Pure substances made up of two or more different kinds of atoms i.e. h2o, there are two hydrogen atoms and one oxygen atom
What’s an isotope
Atoms of same element whose nuclei contain different numbers of neutrons
What is the atomic number
Number of protons
What is the mass number
Total number of protons plus neutrons in nucleus
What’s an ion
An unequal amount of protons and electrons
One mole is equal to
6.022 x 10(23) power
4 shell types
s, p, d, f
Explain covalent bond
Strongest bond i.e. H2 and 02 and methane CH4
Explain polar covalent bonds
Slightly weaker than covalent, the molecule has positive and weaker side i.e. H2O
What’s an ionic bond
Electron is not really shared but taken to one side of the bond, causing a negatively charged ion and a positively charged ion on opposite sides of the bond i.e. Salt sodium chloride NaCl
Hydrogen bonding
Weakest of the bonds i.e. Water h2o and h2o
Molarity can be defined
The number of moles of solute per liter of solvent
I.e. 3 moles of sodium chloride dissolved in 2 liters of water is 3 moles divided by 2 liters equals 1.5 M
Osmole
1 mole of salt= 2 osmoles
1 mole of nonsalt= 1 osmole
Osmolartity
Osmoles of solute per liter of solvent,, milliosmoles (mOsm/L)
Mole
6.022 x 10(23)
Obital subshells have capacity of holding how many electrons
2
Shell 1 has how many subshells/orbitals
One S, capacity two electrons
Valence shell
Outermost shell, 4th subshell
Positive valence atoms are cations
Negative valence atoms become anions
F has 7 orbitals
Noble gases react or don’t react
Don’t react w anything
H
Hydrogen
Li
Lithium
C
Carbon
He
Helium
N
Nitrogen
O
Oxygen
Na
Sodium
Mg
Magnesium
P
Phosphorus
Cl
Chlorine
Ar
Argon
K
Potassium
Ca
Calcium
Fe
Iron
Calculating osmolarity
1.11 mole of glucose divided by liters
1 liter SOLUTION
HCl
Hydrogen chloride
Saturated solution
A solution that has reached solubility
Immiscible
Applies to liquids that do not dissolve into a liquid solvent such as oil and water
To get mass of 1.11 mole of
c6h12o6g
Add up atomic masses of each element and times by 1.11
Calculating osmolality
1 kg per SOLVENT
Calculating molarity
I liter SOLUTION
Calculating molality
1 kg SOLVENT
Tonicity
Comparing two solutions in terms of hypotonic (decrease osmolartity) isotonic (no change)
Hypertonic (increase osmolarity)
Hypotonic
Decrease osmolarity
Hypertonic
Increase osmolarity
Isotonic
No change
Normal osmolarity
270-290
Normal saline
.09%
Arrhenius theory
Acids in water dissociate and produce hydrogen ions (H+), bases in water dissociate and produce hydroxide ions (OH-)
Lowry bronstead theory
The molarity of hydronium ion or hydroxide ion in pure water is 1x 10(-7) moles/liter
Amphoteric
Will accept and donate a proton
A polar solvent when placed in aqueous solution…
Separate in two particles, a cation (+) and an anion (-) at the ionic bond.
1 mM= ? Meq
1mM=1mEq
Salts, 1mM=2 mEq
Carbon can blank and blank
Receive and donate electrons
Two types of isomers
Structural and stereo
Carbon always has how many bonds
Four
g=mL
L=kg
Octect rule doesn’t apply to
Helium and hydrogen
Meters to cm
Move decimal 2 points to right
Benzene doesn’t have 4 bonds or
4 other atoms
Lowery bronstead
Pure water equal # of hydronium and hydroxide
1 mM potassium chloride =
1 mM calcium chloride =
1 mEq
2 mEq
Ammonia and water
Increase OH-, decrease H30+ and increase pH
Alkanes
Saturated with hydrogen
Alkenes
Are not saturated with hydrogen
Alkynes
Triple bonds and not saturated
Aromatic rings
Contains six carbons in a ring, have a sweet smell
Polarized light when passed through L amino
D-gycose?
Will
Rotate to the left
To the right