Quiz 11 Notes (Exam 4)

Question 1

What is the Nernst Equation used for?

Answer 1

It is used for non-standard condition

Question 2

What is the Nernst equation?

Answer 2

*Ecell=Ecell(standard) - 0.0592v divided by n times log Q

Question 3

What is being described?:
Cell reaction must be driven by imposing by a cell voltage

Answer 3

Electrolytes (Electrolytic cell)

Question 4

What two things make up a nucleus?

Answer 4

Protons and Neutrons

Question 5

What defines an element?

Answer 5

Protons

Question 6

What does A represent in nuclear structure notation?

Answer 6

Mass number

Question 7

What does mass number consist of?

Answer 7

Number of protons

Question 8

What does Z represent in nuclear structure notation?

Answer 8

Atomic number

Question 9

What does the atomic number consist of?

Answer 9

Sum of protons and neutrons (number can differ, creating isotopes)

Question 10

What is being described?:
High energy helium nuclei?

Answer 10

Alpha particle

Question 11

What is being described?:
High energy electron

Answer 11

Beta particle

Question 12

What is being described?:
Same mass as electrons but postive charge

Answer 12

Positron

Question 13

What is being described?:
hydrogen nuclei

Answer 13

Proton

Question 14

What is being described?:
very high energy EM radiation

Answer 14

Gamma ray

Question 15

Which type of decay has a parent and daughter nuclide?

Answer 15

Alpha decay

Question 16

Which type of decay is the conversion of a neutron to a proton?

Answer 16

Beta decay

Question 17

Which emission is being described?:
The nuclide forms in an excited state; then decays to ground state

Answer 17

Gamma Emission

Question 18

Which emission is being described?:
Proton is converted into a neutron

Answer 18

Positron emission

Question 19

What is being described?:
Internal process where inner electrons combines with proton; outer electrons fill vacancy left; energy emitted (x-ray)

Answer 19

Electron capture

Question 20

What is a fundamental force of physics?
- In all nucleons (protons and neutrons)
- Attracted to each other
- Acts over very small distances

Answer 20

Strong force

Question 21

What is a balance between the coloumbic (charge) repulsive force and attractive strong force?

Answer 21

Stability

Question 22

What does n over z equal for elements 1-20?

Answer 22

1

Question 23

What does n over z equal for elements 20-40?

Answer 23

1.25

Question 24

What does n over z equal for elements 40-80?

Answer 24

1.5

Question 25

What happens for elements that are greater than 83?

Answer 25

There is no stable nuclei

Question 26

What happens when n over z is too high?

Answer 26

Beta decay will occur

Question 27

What happens when n over z is too low?

Answer 27

Positron emission AND/OR electron capture will occur

Question 28

What happens when there is heavy nuclei?

Answer 28

Alpha decay occurs (only one that reduces mass)

Question 29

What is the nuclear equation for alpha particle?

Answer 29

Write it out

Question 30

What is the nuclear equation for beta particle?

Answer 30

Write it out

Question 31

What is the nuclear equation for positron?

Answer 31

Write it out

Question 32

What is the nuclear equation for proton?

Answer 32

Write it out

Question 33

What is the nuclear equation for neutron?

Answer 33

Write it out

Question 34

What is the delta G equation?

Answer 34

Delta G= -n(F) Ecell

Question 35

What does the constant F equal?

Answer 35

96485

Question 36

What is the first order integrated rate law?

Answer 36

ln (Nt/N0)= -kt

Question 37

What is the 1st order half life equation?

Answer 37

t1/2= 0.693/k

Question 38

What is the Ecell equation?

Answer 38

Ecell(standard)= -(0.0592/n) log Q

Question 39

What is the Ecell equation (when you have t)?

Answer 39

Ecell(standard)= -(RT/nF) lnQ

Question 40

What is included in the transition metal group?

Answer 40

Halides, hydroxides, carbonates, oxides