Chem quiz 1 content

Longer distance leads to

weaker attraction

Strongest IMF

Ion-Dipole

2nd strongest IMF

H-bond

Least soluble ions

Ions with small radii and large charge magnitude

Like Disolves ___

Like

What elements accept H bond

N, O, and F

Unsaturated solution

Below solubility limit at given temp.

Miscible

2 liquids mix completely, forming homogenous solution

Immisicible

2 liquids do NOT intermix, forming heterozygous mixture

Hydrophobic

Generally nonpolar, lack of H-bonds, heavy (ex. oil)

Kelvin in 0 degrees C

273.15

Weak acids are also

Weak electrolytes

Lower temp=

less kinetic energy

Reaction rate formula

Factors that help increase reaction rate

High temp, high concentration (pressure), high surface area, Positive catalysts, chemical properties (smaller tends to be faster)

Higher van Hoff constant will do what to vapor pressure

Hydrocarbon Van Hoff constant always=

Van Hoff constant=1

How is instantaneous rate determined

taking slope of a line tangent to its curve

First order

1:1 proportional relationships between reactant and reaction rate

Catalyst that slows down a reaction rate

Negative Catalyst

Endothermic

Energy is absorbed (+)

Exothermic

Energy is lost (-)

Sum of all exponents on reactants (all exponents added up)

Order of reaction

Stonger IMF forces

higher boiling point

Activated complex

Top of “hill” on graph

Rate of reaction (for reactant

=(-)(1/coefficient)(change of reactant/change in time)