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Acellus General Chemistry > 11- Unit Review > Flashcards

11- Unit Review Flashcards

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1
Q

A strong acid undergoes _____ ionization in water.

A

Complete

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2
Q

HCl is ____.

A

Acid

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3
Q

In the following acid-base reaction, HPO4^2- is the _____.

A

Conjugate bass

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4
Q

Brønsted-Lowry acids are proton _____.

A

Donors

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5
Q

F- is the Lewis ____ in the following reaction.

A

Base

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6
Q

A Lewis acid is an electron pair ____.

A

Acceptor

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7
Q

Classify HCN in as a strong acid or weak acid.

A

Weak

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8
Q

Classify H3PO4 as a strong or weak acid.

A

Weak

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9
Q

The weak ionization constant (Ka) for HCNO is equal to:

A

B

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10
Q

Weak ionization instant (Ka) for HF is equal to:

A

A

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11
Q

LiOH strong or weak base

A

Strong

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12
Q

CH3CH2NH2 as strong or weak base

A

Weak

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13
Q

Weak base ionization constant (Kb) for C4H4N2 is equal to:

A

A

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14
Q

Weak base ionization constant (Kb) for CH3NH2 is = to:

A

A

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15
Q

If the hydrogen ion concentration, [H+], in a solution is 1.87•10^-11 M, what is [OH^-]?

A

A

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16
Q

[OH^-] for a solution is 3.77•10^-13 M. The solution is _____.

A

Acidic

17
Q

Carbonated beverages have a pH of about three which means they’re considered to be in the ____ range.

A

Acidic

18
Q

Coffee has a pH of about five which means it is considered to be in ____ the range.

A

Acidic

19
Q

What is the pH of a 6.7(10^-5) M H+ solution?

A

4.17

20
Q

What is the [H+] if the pH of a solution is 3.20?

A
  1. 3

- 4

21
Q

What is the [OH-] in a solution with a pOH of 11.25?

A
  1. 623

- 12

22
Q

What is the [OH-] in a solution with a pOH of 7.86?

A
  1. 380

- 8

23
Q

What is the pOH of a 7.5•10^-2 M H+ solution?

A

12.88

24
Q

What is the pOH of a 2.6•10^-6 M H+ solution?

A

8.42

25
Q

What is the pOH of a 2.7•10^-11 M solution of lithium hydroxide (LiOH)?

A

Skipped

26
Q

What is the pOH of a 5.6•10^-5 M solution of cesium hydroxide (CsOH)?

A

4.25

27
Q

30 mL of an HF solution we’re titrated with 22.15 mL of a .122 M KOH solution to reach the equivalence point. What is the molarity of the HF solution?

A

.0901

28
Q

29.4 mL of an CH3COOH solution we’re titrated with 18.5 mL of a .175 M LiOH solution to reach the equivalence point. What is the molarity of the CH3COOH solution?

A

.11

29
Q

A solution of the ionic salt LNO3 would have ___ pH.

A

Neutral

30
Q

A solution of the ionic salt CaSO3 would have ___ pH.

A

Basic

31
Q

A buffer solution is prepared by adding NaH2PO4 to a solution of H3PO4. What happens if KOH is added?

A

Shifts to products

32
Q

A buffer solution is prepared by adding NaC2H3O2 to a solution of HC2H3O2z what happens if HCl is added?

A

Shift to reactants

Acellus General Chemistry (63 decks)

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