Electrical Circuits, Solutions/acids, Bases and Buffers

Question 1

What is electricity?

Answer 1

the effects produced by moving charges.

Question 2

What are the two kinds of charge for electricity?

Answer 2

Positive and negative

Question 3

T/F: the SI unit of charge is the coulomb (C).

Answer 3

True

Question 4

What is Coulumb’s Law?

Answer 4

Like charges repel and opposite charges attract.

Question 5

A charge is what type of energy?

Answer 5

Kinetic energy

Question 6

Amount of charge flowing per unit time is ______ current.

Answer 6

electrical

Question 7

One amp of current corresponds to ____ coulomb of charge per second.

Answer 7

one

Question 8

Materials in which charges can easily move are called?

Answer 8

Conductor

Question 9

Materials in which a charge cannot easily move are called?

Answer 9

Insulators

Question 10

What is inductance?

Answer 10

magnetic field induced around the wire when electron flow is in the wire.

Question 11

What is electrical resistance measure in?

Answer 11

Ohms

Question 12

What is power measured in?

Answer 12

Watts

Question 13

Macroshock is defined as anything ______ mA.

Answer 13

> 1

Question 14

Microshock is defined as anything ______ mA

Answer 14

<1

Question 15

Cardery uses high frequency hertz of ___ to ____ hertz.

Answer 15

0.1 to 3000000

Question 16

Power lines use ___ to ___ Hertz.

Answer 16

50 to 60

Question 17

Resting membrane potential is about __ mV.

Answer 17

90

Question 18

During depolorization ______ ion move in and _____ions move out.

Answer 18

Sodium, potassium

Question 19

What is Le Chatelier’s Principle?

Answer 19

When a system in a state of dynamic equilibrium is disturbed, it will react to re-establish the equilibrium condition.

Question 20

What is it called when a system is in a state of equilibrium when there is a balance between reactants and products

Answer 20

Equilibrium constant

Question 21

The balance in equilibrium constant is defined as what?

Answer 21

Thermodynamics

Question 22

What is the meaning of K?

Answer 22

• as K increases, the reaction tends to increasingly favor products
• as K decreases, the reaction tends to increasingly favor starting materials (the reverse reaction becomes more favorable)

Question 23

The subscript of K eq denotes?

Answer 23

generic equilibrium constant

Question 24

The subscript of K a denotes?

Answer 24

weak acid

Question 25

The subscript of K b denotes?

Answer 25

weak base

Question 26

The subscript of K sp denotes?

Answer 26

solubility

Question 27

Heat is an exothermic reaction is a ______.

Answer 27

product

Question 28

Heat in an endothermic reaction is a _______.

Answer 28

reactant

Question 29

In Bronstead acids and bases an acid is a proton _____.

Answer 29

donor

Question 30

In Bronstead acids and bases a base is a proton ______.

Answer 30

acceptor

Question 31

T/F: When an acid donates a proton, it is converted into it conjugate BASE.

Answer 31

True

Question 32

T/F: When a base accepts a proton, it is converted into its conjugate BASE.

Answer 32

False: conjugate ACID.

Question 33

What is a diprotic acid?

Answer 33

acid that has more than one hydrogen ion to donate.

Question 34

Which is more determined to donate a hydrogen ion a strong acid or a weak acid?

Answer 34

Strong acid

Question 35

What is the henderson-hasselbach equation refering too?

Answer 35

A buffer system.

Question 36

Molality (m) refers too?

Answer 36

m=moles solute/kg solvent

Question 37

Molarity (M) refers too?

Answer 37

M = moles solute/ L solution

Question 38

T/F: Molality is never equal to molarity.

Answer 38

True

Question 39

Solubility is the amount of solute that will dissolve in a given amount of _______.

Answer 39

solvent

Question 40

A saturated solution contains the maximum amount of a solute, as defined by its ______.

Answer 40

solubility

Question 41

A solution contains more solute than allowed by the solubility is ________.

Answer 41

supersaturated

Question 42

tow liquids are soluble in each other in all proportions.

Answer 42

Miscible

Question 43

What is Henry's Law?

Answer 43

the amount of a non-reacting gas which dissolves in a liquid is DIRECTLY proportional to the partial pressure of the gas, provided the temperature remains constant.

Question 44

How will temperature effect Henry's Law?

Answer 44

Amount of gas dissolved is INVERSELY proportional to the temperature. (the colder the liquid, the more gas that will dissolve in the liquid

Question 45

The quantity of solvent needed to dissolve a quantity of gas at a given temperature and pressure. (The higher the coefficient the more readily the gas dissolves in the liquid).

Answer 45

Ostwald's Solubility Coefficient.

Question 46

Volume of gas @ STP which dissolves in 1 unit volume of liquid. The milliliters of gas dissolved per milliliter of liquid that is maintained at atmospheric pressure and at a given temperature.

Answer 46

Bunsen Solubility Coefficient

Question 47

What is Dalton's equation?

Answer 47

P = P1 + P2 + P3 + ......

Question 48

The rate of diffusion of gases through a membrane is INVERSELY proportional to the square root of the molecular weight. (What law is this?)

Answer 48

Graham

Question 49

The rate of diffusion of a substance across unit area (such as a surface or membrane) is PROPORTIONAL to the concentration gradient. (What law is this?)

Answer 49

Fick

Question 50

What is the Meyer Overton Law?

Answer 50

Agents with increase oil solubility have greater potency.

Question 51

Diffusion Hypoxia refers to what law?

Answer 51

Fick's Law

Question 52

Air Embolism refers to what law?

Answer 52

Henry's Law