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Ardoin's Chemistry Finals Flashcards | StudBud
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Ardoin's Chemistry Finals
Ardoin's Chemistry Finals
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1
What is the molarity equation?
m= mol solute/ Kg of solvent
M= mol solute/ L of solution
m= mol solute/ L of solution
M= mol solute/ Kg of solvent
2
What is a monoatomic ion?
an ion consisting of zero atoms
an ion consisting of three or more atoms
an ion consisting of exactly one atom
an ion consisting of exactly two atoms
3
What is the range of hydronium ion concentration that indicates an basic solution.
1x108-14
none of the above
1x107
1x100-6
4
The maximum amount of the product that can be produced based on the amount of reactant availble.
actual yield
theorectical yield
% yield
reactant yield
5
A formula giving the number of atoms of each of the elements present in one molecule of a specific compound.
chemical formula
molecular formula
unsaturated formula
saturated formula
6
What does the subscripts () mean?
liquid
gas
solid
aqueous
7
In a titration, what is the standard solution?
the standard solution
the unknown solution
the known solution
none of the above
8
What is LeChatelier's Principle?
systems in equilibrium will stay to attract a change
systems in equilibrium will shift to oppose a change
systems in equilibrium will stay to oppose a change
systems in equilibrium will shift to attract a change
9
What is meant by the 'self-ionization of water'?
water will ionize with itself to produce only hyrdoxid ion
water will ionize with itself to produce hydronium and hydroxid ion
water won't ionize with itself to produce hydronium and hydroxid ion
water will ionize with itself to produce only hydronium ion
10
What does the subscript (l) mean?
aqueous
gas
liquid
solid
11
Thing the solute is dissolved into.
solvent
solute
solution
saturate
12
What are polyatomic ions?
ions formed through covalent bonding invovlving multiple atoms
ions formed through covalent bonding invovlving one atom
none of the above
ions formed through covalent bonding invovlving no atoms
13
What does it mean for a compound to be amphoteric>
it is only a base
it is neither a base or acid
it is only an acid
it is both a base and an acid
14
Doesn't dissociates completely in water.
weak acid
weak base
strong acid
strong base
15
Capable of being mixed
immiscible liquids
miscible liquids
16
What is the molality equation?
m= mol solute/ L of solution
M= mol solute/ Kg of solvent
M= mol solute/ L of solution
m= mol solute/ Kg of solvent
17
unifrom composition
homogeneous
heterogeneous
18
What is an excess reagent?
it will exhaust the limiting reagent and whatever remains stay unreacted
the reactant that limits the amount of product that can be produced
19
What is a colloid?
too big to dissolve like solutions
too small to fall out of mixture like suspensions
homogenous mixture
intermedietly sized particles
20
lab produce where an acid/base of known concentration is used to neutralize and acid/base of concentration.
monitor
indicator
titration
range
21
The mass of a dissolved gas in a given volume of solvent at equilibrium is proportional to partial pressure of the gas
Boyle's Law
Henry's Law
none of the above
Hudson's Law
22
Why is it important to balance a chemical equation?
none of the above
to satisfy the law of conservation of mass
stability
to satisfy the law of conservation of gravity
23
What is the range of hydronium ion concentration that indicates an neutral solution.
none of the above
1x107
1x108-14
1x100-6
24
What are chemical indicators?
chemicals that change color in response to pOH changes
chemicals that change heat in response to pOH
chemicals that change colors in response to pH changes
chemicals that change heat in response to pH
25
Directly measures the amount of OH- in a solution
pOH
pH
26
This formed from a Bronsted Lowry acid.
conjugate base
conjugate acid
27
Dissociates completely in water.
strong base
weak base
weak acid
strong acid
28
A solution that can't dissolve anymore solute
unsaturated
super-unsatrurated
saturated
supersaturated
29
What is an alloy?
A metal
An atom that gains or looses protons
A mixture of one or more non metals
the degree of mixture with base metals
30
Doesn't ionize completely in water.
weak base
strong acid
strong base
weak acid
31
Thing object being dissolved.
solution
saturate
solute
solvent
32
What is the tynall effect?
When light is absorbed
When light reflects off mixtures
When light reflects off solids
ability to visualize light as it passes through a mixture
33
What does it mena for a substance to be soluble?
a substance that cannot dissolve on its own
the ability of a substance to dissolve
the ability of a substance to be able to dissolve something
a substance that can only dissolve with water
34
What are coefficients?
The result of adding
tell you how many molecules of a given formula are present
Numbers that stand alone and have fixed values
The order in which mathematical operations should be
35
What does the subscripts (s) mean?
aqueous
solid
gas
liquid
36
One that holds more solute than it could ordinarily hold at standard temperature and pressure.
unsaturated
saturated
supersaturated
super-unsaturated
37
What is the range of hydronium ion concentration that indicates an acidic solution.
1x100-6
1x107
1x108-14
none of the above
38
How do we determine the charge of a transition metal?
by adding the charge of all the elements in the compound
use the charge of the same element in the compound
use the charge of the opposite element in the compound
by subracting the charge of all the elements in the comound
39
What factors increase the rate of dissolution of a solute in solvent?
surface area
agitation
polarity
temperatute
40
Why is water considered the universal solvent?
can't dissolve nonpolar compounds
dissolves all polar
can't dissolve most sugars
dissolves most salt
41
What type of factors are known to shift a chemical equilibrium?
surface area
temperature
pressure
concentration
42
How do you name binary ionic compounds?
transition rule
sufixes
prefixes
the period the element is in
43
Describes the atoms involved in substances or compound.
chemical formula
saturated formula
molecular formula
unsaturated formula
44
This formed from a Bronsted Lowry base.
conjugate base
conjugate acid
45
What does the subscript (aq) mean?
solid
gas
aqueous
liquid
46
Can water dissolve non-polar compunds?
Yes, water can dissolve anything
Yes, water can only dissolve nonpolar compounds
No, water can only dissolve nonpolars
No, polar can't dissolved nonpolar
47
What are the types of chemical reactions have we looked at?
change of color
formation of a precipitate
evolution of heat
production of light and gas
48
What must be true of an ionic compound?
must be nuetral
must be negative
must be positive
none of the above
49
What is a suspension?
Mixtures with floating ingredients that always stay on top
mixture that includes particle that is "suspended" in the mixture
A mixture so sticky that it keeps particles in place
A mixture with particles that dissolve in it
50
those which won't mix to give give a single phase
immiscible liquids
miscible liquids
51
doesn't have an uniform composition
homogeneous
heterofeneous
52
What is a nuetralization reaction?
acid+base -> water+salt
water+salt -> acid+base
acid+water -> base+salt
acid+salt -> water+base
53
The ratio of actual to theoretical yield; it is useful in analyzing out actual product.
analyzing yield
theoretical yield
actual yield
% yield
54
Directly measures the amount of H+ or H3O+ in a solution.
pH
pOH
55
What are indicators of a chemical reaction?
gas
solid
aqueous
liquid
56
Ionize completely in water.
strong acid
strong base
weak acid
weak base
57
How can we determine empiracle formula from % composition?
% -> mol -> grams -> empirical formula
% -> grams -> mol -> empirical formula
% -> mol -> empirical formula
% -> grams -> emirical formula
58
What is a limiting reactant?
it will exhaust the limiting reagent and whatever remains stay unreacted
the reactant that limits the amount of product that can be produced
59
What are subscripts?
used to determine the amount of atoms in a molecule
subway sandwich
indicates the number of atoms of the element slowly
indicates the about of molecules in an atom
60
What is equilibrium?
not a static system
unbalanced system
button active system that has achieved a balance w/ no net charge
balanced system
61
What is the mole ratio in a chemical equations?
it allows us to compare different substances in a reaction
it allows us to compare similar substances in a reaction
it allows us to get rid of old substances in a reaction
it allows us to discover new substances in a reaction
62
What is an electrolyte?
resultant solutuin is not a good conductor of current
substances that produce ions when dissolved in water
substance that does not form ions when siddolved
makes the solution capable of conduction current
63
What is a nonelectrolyte?
resultant solution is not a good conductor of current
substance that does not form ions when dissolved
makes the solution capable of conduction current
substances that oroduce ions when dissolved in water
64
A solution capable of dissolving in more solute
supersaturated
super-unsatrurated
saturated
unsaturated
