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31 Cards in this Set

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Increasing radii: Cations are....
smaller than parent atoms.
Increasing radii: Anions are...
larger than their parent atoms.
Increasing radii: For ions carrying the same charge...
size increases as you go down a column in the periodic table
Ionization Energy
the minimum energy required to remove an electron from the ground state of the isolated gaseous atom or ion.
{The greater the ionization energy, the more difficult it is to remove an electron.)
neutralization reactions
Acid + Base --> H20 + salt
in net ioonic equations, separate aq into ions, and keep everything else together,
if H20 is there, just put L
the more protons, the more acidic
name the 7 strong acids (H+) - these completely dissociate in H20
Hydrochloric, hydrobromic,hydroiodic,sulfuric(h2s04), Chloric (HClO3), Perchloric HClO4)
name the strong bases
alkali metals, calcium
Molarity is one way to measure the concentration of a solution…formula is
moles of solute over volume of solution in liters
calculate the concentration (M)….
MaVa=MbVb
how many moles are formed in neutralization….
take given volume x molarity/concentration of base
Dilution problems : how would you prepare… solution diluted to a volume of…
M1V1 = M2V2
Calculating Concentration of a solute in a solution…
MaVa = MbVb
Solution problems: how many ml are needed to neutralize??
since 1 mole acid is needed to neutralize 1 mole : MaVa=MbVb
Molarity can be solved these ways
molarity, dilution, titration
Titration is:
the technique in which one can calculate the concentration of a solute in a solution.. Molarity of acid x volume of acid = molarity of base x volume of base
Endergonic
greater than zero, entering
endothermic
absorbs heat (endo =in)
exothermic
heat exits , reaction gives off heat, therefore change in Heat is negative
heat energy in joules (absorbed) is calculated by
Heat Energy = mass x change in Temp x Specific Heat
specific heat is calculated by
heat transferred / mass x temperature change
All members that have very similar chemical properties
are all in the same column
Order for atomic radius
can be calculated just by looking at atomic number (for example, Na is 11)
Ionization energies
refer to chart
change in heat (delta H)
sum of
negative electron affinity
wants to be negative
Most metallic can be found where on the periodic table?
farthest to the Left
Non metals are…. Acidic/Basic?
non metals are always acidic
Metals are…. Acidic/Basic
metals are always basic