CH 6

Question 1

If you have a small Keq value (<1) will your reaction favor reactants or products?

Answer 1

A small Keq value favors reactants

Question 2

which has least acidity - sp, sp² or sp³ hybrids?

Answer 2

sp³

(sp³ has least effective electronegativity)

Question 3

Does acidity increase down or up periodic columns?

Answer 3

down

(increases with size)

Question 4

Do chiral or achiral molecules rotate the plane of polarized light? (i.e. have optical activity)

Answer 4

Chiral molecules have optical activity

Question 5

If you have a large Keq will your reaction have a strong or weak acid?

Answer 5

Large Keq = strong acid

Question 6

To increase pH do you increase or decrease [H₃O⁺]?

Answer 6

decrease [H₃O⁺]

Question 7

If you have a higher pKa, do you have a stronger or weaker acid?

Answer 7

Higher pKa = weaker acid

Question 8

To decrease pH do you increase or decrease [H₃O⁺]?

Answer 8

increase [H₃O⁺]

Question 9

If you have a small Keq will your reaction have a strong or weak acid?

Answer 9

Small Keq = weak acid

Question 10

How is acidity effected in periodic rows?

Answer 10

by electronegativity

(L to R and Bottom to Top)

Question 11

Do bases donate or accept protons?

Answer 11

Bases accept protons

Question 12

Are anions stabilized or destabilized by electron donating groups (EDG)?

Answer 12

destabilized

Question 13

If you have a large Keq will you have a higher or lower pKa?

Answer 13

Large Keq = lower pKa

Question 14

Are cations stabilized or destabilized by electron donating groups (EDG)?

Answer 14

stabilized

Question 15

If delta G^o is negative, does the reaction favor reactants or products?

Is it endergonic or exergonic?

What is it’s Keq? (>1 or <1)

Answer 15

favors products

exergonic

Keq > 1

Question 16

If you have a large Keq (>1) will your reaction favor reactants or products?

Answer 16

A large Keq value favors products

Question 17

If you have a small Keq will you have a higher or lower pKa?

Answer 17

Small Keq = higher pKa

Question 18

If you have a lower pKa, do you have a stronger or weaker acid?

Answer 18

Lower pKa = stronger acid

Question 19

which has greatest acidity - sp, sp² or sp³ hybrids?

Answer 19

sp

(sp has greatest effective elctronegativity)

Question 20

Are cations stabilized or destabilized by electron withdrawing groups (EWG)?

Answer 20

destabilized

Question 21

Are anions stabilized or destabilized by electron withdrawing groups (EWG)?

Answer 21

stabilized

Question 22

Do acids donate or accept protons?

Answer 22

Acids donate protons

Question 23

If you a Keq value of 1 will your reaction favor reactants or products?

Answer 23

It favors both

Question 24

If delta G^o is positive, does the reaction favor reactants or products?

Is it endergonic or exergonic?

What is it’s Keq? (>1 or <1)

Answer 24

favors reactants

endergonic

Keq < 1