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Chem 101 > Final Review Flashcards > Flashcards

Final Review Flashcards

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1
Q

if there is an increase in volume, where does the reaction shift to?

A

It shifts towards whichever side has more molecules

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2
Q

If a reaction is endothermic, where does it shift?

A

It shifts towards the products

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3
Q

If a reaction is exothermic, which way does it shift?

A

Towards the reactants

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4
Q

What is the name of HBrO2?

A

Bromous acid

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5
Q

What is the name of HBrO3?

A

Bromic acid

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6
Q

What in an acid and base reaction is a proton donor or acceptor?

A

Acid is the donor, base is the acceptor
(conjugate base has one less H, conjugate acid has one more H)

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7
Q

What side of a reaction will heat be on if it is endothermic?

A

The reactants side

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8
Q

What is the mass of a Gamma?

A

it is 0

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9
Q

What is the mass of a neutron?

A

It is 1.008 amu

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10
Q

What is the mass of a proton?

A

1.007 amu

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11
Q

What is the mass of an electron?

A

0.00055 amu

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12
Q

What is the mass of Beta?

A

0.0005 amu

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13
Q

What is the mass of Alpha?

A

4.016

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14
Q

What is the formula for bicarbonate?

A

HCO3^-

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15
Q

What does the electronegativity difference have to be for an ionic bond?

A

Greater than 1.8

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16
Q

What does the electronegativity difference have to be for a polar covalent bond?

A

0.5-1.8

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17
Q

What does the electronegativity difference have to be for a nonpolar covalent bond?

A

less than 0.5

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18
Q

What are the elements that can form a hydrogen bond with H?

A

Nitrogen, oxygen, and fluorine

19
Q

What are ionic bonds made up of?

A

Metals and nonmetals

20
Q

What are covalent bonds made up of?

A

Nonmetals and Nonmetals

21
Q

What is the equation to convert Celsius to Fahrenheit?

A

F= 1.8 (temp C) + 32

22
Q

What is the equation for converting Kelving to Celsius?

A

C= K-273

23
Q

Does an acid or base have a slippery feel?

A

Base

24
Q

Can acids or bases conduct electricity?

A

Both

25
Q

Does a weak acid have a large Ka value or small?

A

Small

26
Q

What is the value of Kw when the water is neutral?

A

1.0 x 10^-14
(this means both H and OH- are 1.0 x 10^-7)

27
Q

If the OH^- is 7.88 x 10^-11, is the solution more acidic or basic?

A

It is more acidic, because OH is very small

28
Q

If the H3O+ is 2.54 x 10^-8, is the solution more acidic or basic?

A

It is more basic, because H3O is smaller than 10^-7

29
Q

What is the Kw equation?

A

Kw= [OH^-][H3O^+] or Ka x Kb

30
Q

What is the formula to find pH?

A

pH= -log(H3O^+)

31
Q

How do sig figs work when finding pH?

A

You use the amount of sig figs in the question to know how many decimal places there are in the answer.
ex. question has 3 sig figs, answer could be 6.708

32
Q

How do you find the pH when given the OH value?

A

pOH= -log (OH^-)
14-pOH=pH

33
Q

How do you find a H3O value when given the pH?

A

H3O^+=10^-pH

34
Q

What are the products of an Acid and metal reactions?

A

a salt and H2 gas

35
Q

What are the products of an acid and carbonate reaction?

A

Salt, CO2 gas, and H2O

36
Q

What are the products of an acid and base reaction?

A

salt and H2O

37
Q

What is the H3O^+ of a 0.190M solution of HI?

A

0.190M, because it is a strong acid and disassociates completely

38
Q

What is the purpose of a buffer?

A

To try and maintain pH

39
Q

What is the equation to calculate the pH of a buffer solution?

A

pH=-log(Ka)+log(A^-/HA)

40
Q

What are some weak acids?

A

HF, HCLO, HNO2, HCN, HC2H3O2

41
Q
A
42
Q

What is the equation for Kc (equilibrium constant)?

A

Products divided by reactants

43
Q

If K is greater than 1, does it favor the products or reactants?

A

products

44
Q

What phases of matter are going to be included in an equilibrium expression?

A

Only gas and aqueous

Chem 101 (10 decks)

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