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Exam Review 2024-2025
G-L's law relates ___ and ____
find pH if Hydroxide concentration is 1x10-4 M
Exam Review 2024-2025
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Answers
1
find pH if
Hydroxide
concentration is 1x10-4 M
8
-4
10
4
2
G-L's law relates ___ and ____
T and P
P and V
T and V
3
Ending for a triple bond
-yl
-ene
cyclo-
-yne
4
Which is the structural formula for propane?
CH3CH2CH3
C3H8
CH3CH3CH3
CH3CH2CH2CH3
5
The pressure of a gas in a container is 152 mmHg. This is equivalent to ____
0.4 atm
0.2 atm
2 atm
0.3 atm
6
4.0 g Fe heated from 0C to 20C absorbs 35.2 J, find the specific heat
2.27 J/g*C
2816 J/g*C
0.44 J/g*C
2.27 J/g
7
A chunk of ice whose temp is -20 C is added to an insulated cup filled with water at 0 C. What happens?
some water freezes, so the chunk of ice gets larger
the water cools until it reaches the temp of the ice
the ice melts until it reaches the temp of the water
none of these
8
Which is a Bronsted Lowry conjugate acid-base pair?
CO22- and CO
H3O+ and H2
SO32- and SO2
NH4+ and NH3
9
Hydronium formula
H3O+
H+
H2O+
H3O-
10
Degree of randomness in a system
enthalpy
entropy
free energy
temperature
11
Smelling cinnamon rolls baking would be an example of
diffusion
compression
expansion
effusion
12
WRITE DOWN 5 types of chemical reactions then select 'A' below
B
A
13
How many attachments for 2-butyl, 3-methyl - cyclopropane
4
3
1
2
14
Boyle's law relates ___ and ___
T and V
T and P
P and V
15
Temp of a gas is tripled, the volume will
reduced by one third
too much info
not enough info
triple
16
During a phase change
I love Lucy
All of these
Little house on the prairie
Flintstones
17
Find the boiling point elevation with a molality 0.667 molal? kb is 0.51 C/molal
0.01 C
0.2 C
0.32 C
0.34 C
18
______ balance formulas, ________ equations
coefficients, subscripts
subscripts, coefficients
19
In a combustion reaction, one of the reactants is
metal
oxygen
hydrogen
nitrogen
20
Adding salt to water will cause it to boil at a ___ temp
higher
same
lower
21
Molar volume of a gas at STP is
22.4 L
224 L
0.224 L
2.24 L
22
Particles in a solid move...
randomly
vibrate
not at all
slip and slide
23
Precipitation occurs in which type of reaction
decomposition
SR
DR
composition
24
What year did Disney World open?
1965
1968
1971
1984
25
Reactant that controls the amount of product?
mole ratio
limiting
excess
composition
26
A 0.12M solution of an acid that ionizes only slightly in solution would be termed _____
dilute and weak
strong and dilute
concentrated and weak
concentrated and strong
27
What was invented 1st, the match or the lighter?
match
lighter
28
A gas is -13 C, pressure is 1.5 atm, temp goes up to 15 C, find the new pressure
1.7 atm
3.0 atm
19.5 atm
-1.5 atm
29
pOH is 2.4, this would be
basic
acidic
neutral
30
Heat is ________ KE of particles
average
total
31
What was Kool aid originally marketed as?
Hair dye
Nefarious malfeasance
Fruit snack
32
Standard temp is exactly
0 K
273 C
100 C
0 C
33
While boiling water for mac and cheese the water temp will
continually increase
not change
increase until boiling point
34
How many moles of sodium hydroxide are produced from 3.0 mol of sodium? 2Na+2H20->2NaOH+H2
3.0 mol
4.5 mol
1.0 mol
2.5 mol
35
2 liquids won't dissolve in each other are
immiscible
super saturated
effervescent
saturated
36
Which dissolves most quickly
powdered sugar cold water
sugar cubes cold water
powdered sugar hot water
sugar cubes hot water
37
Enthalpy is letter ___ and ___ when exothermic
H, negative
S, negative
H, positive
S, positive
38
pH of a weak acid
6.8
0
7.2
14
39
Charle's law relates __ and ___
T and V
T and P
P and V
40
Gases A and B each exert 220 mm Hg, Gas C exerts 110, Total pressure is 860 mm Hg, find Gas D
310 mm Hg
860 mm Hg
165 mm Hg
220 mm Hg
41
The process of adding a known amount of solution of known concentration to determine the concentration of an unknown is
hydrolysis
titration
neutralization
buffer capacity
42
During a phase change, the temp of a substance _____
decreases
may increase or decrease
remains constant
increases
43
Convert 0.75 atm to mm Hg
101.3 mm Hg
570 mm Hg
430 mm Hg
760 mm Hg
44
155 mL of 12 M solution is diluted to 310 mL, find the new concentration
3 M
0.3 M
9 M
6 M
45
What does a double arrow mean in a chemical equation?
the reaction is reversible
heat must be applied
a gas is formed by the reaction
an incomplete combustion reaction has ocurred
46
What is the name for a group of crows?
Murder
Misdemeanor
Demerit
Truant
47
What does OPS stand for in baseball?
Often stolen passed ball
On base plus slugging %
On base plus steals
48
Change of state from solid directly to a gas
deposition
sublimation
49
Which instrument measures atmospheric pressure?
thermometer
manometer
barometer
vacuum
50
Four gases exert a total P of 860mmHg. Gases A and B each exert 220 mmHg, Gas C 110 mmHg, What is P for gas D?
220
165
860
310
51
What is the geometry of water?
trigonal planar
bent
linear
tetrahedral
52
What volume of 6.80M HCl is needed to make 319 mL of 6.00M
7.8 mL
281mL
0.128 mL
362mL
