Cheese exam 1 Flashcards

1
Q

What is the octet rule?

A
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2
Q

Which atoms are exempted from the octet rule?

A
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3
Q

Sigma and pi bonds

A

Single bond = 1๐›”
Double bond = 1๐›” +1๐›‘
Triple bond = 1๐›” + 2๐ฟ

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4
Q

What is molality?

A

molality=(mol solute)/(kg solvent)

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5
Q

What is i?

A
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6
Q

Boiling point Elevation Equation

A

ฮ”T_b=im(k_bp)

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7
Q

If the change in deltaT_b is needed to convert to Celsius..

A

add 100 to deltaT_b

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8
Q

Henryโ€™s Law Equation

A

C=kP ; k is a constant and P is pressure

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9
Q

Freezing point depression equation

A

delta(T_f) = im(k_f)

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10
Q

The i of a non-electrolyte is

A

1

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11
Q

molar mass

A

MM = mass / mol

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12
Q

Molarity Equation

A

Molarity (M) = moles of solute (n) / L of solution

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13
Q

percent by mass

A

22.3% = (22.3 g solute)/(100 g of solution)

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14
Q

If a solid is IONIC -> will have polar bond โ€“> dissolve in polar solvent

A

If a solid is COVALENT -> will have NP bond -> dissolve in NP solvent

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15
Q

Polar Bond examples

A

O-H

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16
Q

Non polar bond examples

A

C-H

17
Q

The rate law is equal to what step?

A

The slow step

18
Q

The rate law only includes what?

A

reactants

19
Q

amt/t = con/t = ___ rate law

A

integrated rate law

20
Q

Integrated rate law second order

A

1/[A] = kt + 1/[A]o

21
Q

Second order units

A

M^-1 s^-1

22
Q

unit for order reaction equation

A

units = M^1-n time^-1

0 order M^1s^-1
1 order M^0 s^-1 =s^-1
2 order M^-1s^-1
3 order M^-2 s^-1

23
Q

What is Kc (equilibrium constant)?

A

the ratio of the equilibrium concentrations of products over the equilibrium concentrations of reactants each raised to the power of their stoichiometric coefficients
no solids or liquids

24
Q

How to know if a graph is showing an exothermic reaction?

A

It is showing an exothermic reaction if the potential energy is higher on the reactants side than the products side.

25
Q

Q and K relationship

A

Q > k reaction will go to the left
Q < k reaction will go to the right

26
Q

Kp formula

A

Kp = kc(RT)^(delta)n
where R is 0.0821 Latm/molk
(delta) n = mol of prod - mol of reactants