Cheese exam 1 Flashcards
What is the octet rule?
Which atoms are exempted from the octet rule?
Sigma and pi bonds
Single bond = 1π
Double bond = 1π +1π
Triple bond = 1π + 2πΏ
What is molality?
molality=(mol solute)/(kg solvent)
What is i?
Boiling point Elevation Equation
ΞT_b=im(k_bp)
If the change in deltaT_b is needed to convert to Celsius..
add 100 to deltaT_b
Henryβs Law Equation
C=kP ; k is a constant and P is pressure
Freezing point depression equation
delta(T_f) = im(k_f)
The i of a non-electrolyte is
1
molar mass
MM = mass / mol
Molarity Equation
Molarity (M) = moles of solute (n) / L of solution
percent by mass
22.3% = (22.3 g solute)/(100 g of solution)
If a solid is IONIC -> will have polar bond β> dissolve in polar solvent
If a solid is COVALENT -> will have NP bond -> dissolve in NP solvent
Polar Bond examples
O-H