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Chemistry > Test 3 > Flashcards

Test 3 Flashcards

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0
Q

Ideal Gas Law

A

PV=nRT

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1
Q

Adding heat to an exothermic reaction causes the equilibrium to shift in which direction?

A

Toward the reactants side

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2
Q

Henry’s law states that the solubility of a gas is inversely proportional to ___

A

The temperature of the gas

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3
Q

Pressure conversion

A

1 atm = 760 mm Hg

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4
Q

List the different factors that affect reaction rate

A

Temperature of reactance Physical state of reactants Concentration of reactants Structure of the reacting species Presence of a catalyst

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5
Q

Charles’ law:

A

V1/T1=V2/T2

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6
Q

Boyles law

A

PiVi=PfVf

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7
Q

Solutions in which there is more solute inside the Cell than out is a _____ solution

A

Hypotonic

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8
Q

A solvent is saturated when:

A

It contains the maximum amount of solute at a specific temperature

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9
Q

Dalton’s law

A

Pt = P1+P2+P3…

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10
Q

A solution that contains 100% ions is a

A

Strong electrolyte

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11
Q

An increase in volume of an equilibrium causes the equilibrium to shift toward which side of the reaction?

A

The side with the most moles of gas

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12
Q

Use this conversion when you see moles or grams:

A

Ideal gas law, PV=nRT

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13
Q

What do you do to find the mass per volume percent of a solute in solution?

A

Divide the grams of solute by the # of mL of solution and multiply by 100

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14
Q

When pressure is held constant, the relationship between temperature and volume is:

A

Directly proportional, increased temperature= increased volume

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15
Q

The refraction of light in a colloid is known as

A

Tyndalls effect

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16
Q

Avogadros law

A

1 mol = 22.4 L @ STP

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17
Q

What do you do to find the molarity of a solution?

A

Divide the number of moles given by the number of Liters given If grams are given instead of moles, convert molar mass before converting.

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18
Q

A solution in which there is more solute outside the cell than inside is a _____ solution

A

Hypertonic

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20
Q

Combined Gas Law

A

PiVi/Ti=PfVf/Tf

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21
Q

A solution that contains 100% molecules is called a

A

Non electrolyte

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21
Q

An decrease in volume of an equilibrium causes the equilibrium to shift toward which side of the reaction?

A

The side with the fewest moles of gas.

22
Q

Adding reactants to an equilibrium causes the equilibrium to shift in which direction?

A

Toward the products side

23
Q

A solution which contains both molecules and ions is called a

A

Weak electrolyte

25
Q

How can you change the rate of reaction By altering the physical structure of the species?

A

Smaller particle size to increase surface area

26
Q

Charles’s law deals with what?

A

Volume and temperature

27
Q

Formula for a dilution problem:

A

MiVi=MfVf

28
Q

If a solution is polar, only ___ substances will dissolve into it

A

Polar

29
Q

Define reaction rate

A

Any change in the concentration of a reactant or product overtime

30
Q

Adding heat to an endothermic reaction causes the equilibrium to shift in which direction?

A

Toward the product side

31
Q

Molarity formula when you already have molarity:

A

Given number of Moles/1 L solution

33
Q

In PV=nRT R =?

A

0.0821 (atm)(L)/(mol)(K)

34
Q

According to Henrys law what happens to the solubility of a gas at higher temperature?

A

It becomes more insoluble

35
Q

Dalton’s law deals with what?

A

Partial pressures

36
Q

Adding product to an equilibrium causes the equilibrium to shift in which direction?

A

Toward the reaction side.

37
Q

An decrease in pressure on an equilibrium causes the equilibrium to shift toward which side of the reaction?

A

The side with the most moles of gas

38
Q

Unlike a colloid or suspension, a true solution is ___

A

Always mixed

39
Q

Molarity formula when you want to find molarity:

A

Moles of solute/ Liters of solution

41
Q

Removing heat from an exothermic reaction causes the equilibrium to shift in which direction?

A

Toward the product side

42
Q

Henry’s law states that the solubility of a gas is directly proportional to ___

A

The partial pressure of the gas

43
Q

Equilibrium constants do not apply to what?

A

Solids and liquids

45
Q

What is the heat of reaction?

A

The difference in heat between the reactants and the products

45
Q

Explain collision theory

A
  1. The molecules must come into contact with each other 2. Molecules must collide with enough energy to overcome the activation energy 3. The molecules must collide in the proper orientation
47
Q

Removing heat from an endothermic reaction cause of the equilibrium to shift in which direction?

A

Towards the reactant side

48
Q

An increase in pressure on an equilibrium causes the equilibrium to shift toward which side of the reaction?

A

The side with the fewest moles of gas

49
Q

What is the activation energy?

A

The minimum amount of energy required to initiate a reaction

50
Q

Solvents are always ____

A

Liquid/water

51
Q

What conditions indicate a nonpolar molecule?

A

4 of the same element around the central atom Hydrocarbon atoms A molecule made up of 2 or more of a single element

52
Q

Boyles law deals with what?

A

Pressure and volume

53
Q

What do you do to find the mass per mass percent of a solute in solution?

A

Divide grams of solute by the number of grams of solution and multiply by 100

54
Q

According to Henrys law what happens to the solubility of a gas at higher pressure?

A

It becomes more soluble

55
Q

A solution is made up of what?

A

Solvent and solute

56
Q

One atm equals what?

A

760 mmHg

Chemistry (6 decks)

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