notebook. the fume hoods, prepare asure 3 mL of water and level of 3 mL of solution ed. - bath to reduce bumping almly. brium test tube. rium system to go to the ent, add it dropwise until Loose only from the 1 M ter adding 10 drops, try rium system back to its dd it dropwise until the se only from the 1 M nt does not work, try ution into a test tube. = until you observe a esolution in a boiling agitate the test tube r2 min and then place als from time to time. -m the ice bath at the own "snow globe". d NH4Cl to cover the the sides of the test more NH4Cl. FeCl3 and 1 mL of 0.1 M KSCN in a 100-mL by combining 1 mL volumetric flask and filling the flask with DI H2O. Add 3 mL of this FeCl3-KSCN solution each to two test tubes. 2. To the first one, add 5 drops of 0.1 M FeCl3. 3. To the second one, add 5 drops of 0.1 M KSCN. After recording your observations, add 5 drops of 0.1 M AgNO3 to the same test tube. Mix the solution thoroughly and wait for 5 min. The white precipitate is AgSCN. Waste Disposal Liquids: hazardous waste Practice Problems . Problem 1: Consider the following reaction at equilibrium: N2(g) + 3H2(g) → 2NH3(g) AH-92 kJ/mol a) How is the pressure of ammonia affected if some nitrogen gas is added? b) How is the amount of hydrogen gas affected if the volume of the reaction vessel is doubled? How is K affected? c) How is the pressure of hydrogen gas affected if the temperature is raised? How is K affected? d) How are the rate of the reverse reaction and the pressure of hydrogen gas affected if a catalyst is added? Problem 2: Consider the following reaction at equilibrium: Zn(s) + 2HCl(aq) = ZnCl2(aq) + H2(g) a) How is [ZnCl2] affected if some HCl is added? b) Some hydrogen gas is removed. How does this affect the pH (pH = -log[H3O+])? c) Some NaOH is added. How does this affect the pH and the pressure of hydrogen gas? d) Some solid zinc is added. How does this affect [HC1]? Answers: 1a) increase, b) increase, no change, c) increase, decrease, d) increase, no change, 2a) increase, b) increase, c) increase, decrease, d) no change gas ever Lecree HCI loc A C 17 77
notebook. the fume hoods, prepare asure 3 mL of water and level of 3 mL of solution ed. - bath to reduce bumping almly. brium test tube. rium system to go to the ent, add it dropwise until Loose only from the 1 M ter adding 10 drops, try rium system back to its dd it dropwise until the se only from the 1 M nt does not work, try ution into a test tube. = until you observe a esolution in a boiling agitate the test tube r2 min and then place als from time to time. -m the ice bath at the own "snow globe". d NH4Cl to cover the the sides of the test more NH4Cl. FeCl3 and 1 mL of 0.1 M KSCN in a 100-mL by combining 1 mL volumetric flask and filling the flask with DI H2O. Add 3 mL of this FeCl3-KSCN solution each to two test tubes. 2. To the first one, add 5 drops of 0.1 M FeCl3. 3. To the second one, add 5 drops of 0.1 M KSCN. After recording your observations, add 5 drops of 0.1 M AgNO3 to the same test tube. Mix the solution thoroughly and wait for 5 min. The white precipitate is AgSCN. Waste Disposal Liquids: hazardous waste Practice Problems . Problem 1: Consider the following reaction at equilibrium: N2(g) + 3H2(g) → 2NH3(g) AH-92 kJ/mol a) How is the pressure of ammonia affected if some nitrogen gas is added? b) How is the amount of hydrogen gas affected if the volume of the reaction vessel is doubled? How is K affected? c) How is the pressure of hydrogen gas affected if the temperature is raised? How is K affected? d) How are the rate of the reverse reaction and the pressure of hydrogen gas affected if a catalyst is added? Problem 2: Consider the following reaction at equilibrium: Zn(s) + 2HCl(aq) = ZnCl2(aq) + H2(g) a) How is [ZnCl2] affected if some HCl is added? b) Some hydrogen gas is removed. How does this affect the pH (pH = -log[H3O+])? c) Some NaOH is added. How does this affect the pH and the pressure of hydrogen gas? d) Some solid zinc is added. How does this affect [HC1]? Answers: 1a) increase, b) increase, no change, c) increase, decrease, d) increase, no change, 2a) increase, b) increase, c) increase, decrease, d) no change gas ever Lecree HCI loc A C 17 77
Chapter4: Least-squares And Calibration Methods
Section: Chapter Questions
Problem 1P
Related questions
Question
Is there a pattern to the way pH, amount, K, pressure increases decreases or has no change?
![notebook.
the fume hoods, prepare
asure 3 mL of water and
level of 3 mL of solution
ed.
- bath to reduce bumping
almly.
brium
test tube.
rium system to go to the
ent, add it dropwise until
Loose only from the 1 M
ter adding 10 drops, try
rium system back to its
dd it dropwise until the
se only from the 1 M
nt does not work, try
ution into a test tube.
= until you observe a
esolution in a boiling
agitate the test tube
r2 min and then place
als from time to time.
-m the ice bath at the
own "snow globe".
d NH4Cl to cover the
the sides of the test
more NH4Cl.
FeCl3 and 1 mL of 0.1 M KSCN in a 100-mL
by combining 1 mL
volumetric flask and filling the flask with DI H2O. Add
3 mL of this FeCl3-KSCN solution each to two test tubes.
2. To the first one, add 5 drops of 0.1 M FeCl3.
3. To the second one, add 5 drops of 0.1 M KSCN. After
recording your observations, add 5 drops of 0.1 M
AgNO3 to the same test tube. Mix the solution
thoroughly and wait for 5 min. The white precipitate is
AgSCN.
Waste Disposal
Liquids: hazardous waste
Practice Problems
.
Problem 1: Consider the following reaction at
equilibrium:
N2(g) + 3H2(g) → 2NH3(g)
AH-92 kJ/mol
a) How is the pressure of ammonia affected if some
nitrogen gas is added?
b) How is the amount of hydrogen gas affected if the
volume of the reaction vessel is doubled? How is K
affected?
c) How is the pressure of hydrogen gas affected if the
temperature is raised? How is K affected?
d) How are the rate of the reverse reaction and the
pressure of hydrogen gas affected if a catalyst is
added?
Problem 2: Consider the following reaction at
equilibrium:
Zn(s) + 2HCl(aq) = ZnCl2(aq) + H2(g)
a) How is [ZnCl2] affected if some HCl is added?
b) Some hydrogen gas is removed. How does this affect
the pH (pH = -log[H3O+])?
c) Some NaOH is added. How does this affect the pH
and the pressure of hydrogen gas?
d) Some solid zinc is added. How does this affect [HC1]?
Answers: 1a) increase, b) increase, no change, c) increase,
decrease, d) increase, no change, 2a) increase, b) increase,
c) increase, decrease, d) no change
gas
ever
Lecree
HCI
loc
A
C
17
77](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7bc30bfd-54a4-45be-8be6-a7bac17a47af%2Ffc64e58d-7f20-4c31-973c-a8efe1ee9ef6%2Fn8uzwm5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:notebook.
the fume hoods, prepare
asure 3 mL of water and
level of 3 mL of solution
ed.
- bath to reduce bumping
almly.
brium
test tube.
rium system to go to the
ent, add it dropwise until
Loose only from the 1 M
ter adding 10 drops, try
rium system back to its
dd it dropwise until the
se only from the 1 M
nt does not work, try
ution into a test tube.
= until you observe a
esolution in a boiling
agitate the test tube
r2 min and then place
als from time to time.
-m the ice bath at the
own "snow globe".
d NH4Cl to cover the
the sides of the test
more NH4Cl.
FeCl3 and 1 mL of 0.1 M KSCN in a 100-mL
by combining 1 mL
volumetric flask and filling the flask with DI H2O. Add
3 mL of this FeCl3-KSCN solution each to two test tubes.
2. To the first one, add 5 drops of 0.1 M FeCl3.
3. To the second one, add 5 drops of 0.1 M KSCN. After
recording your observations, add 5 drops of 0.1 M
AgNO3 to the same test tube. Mix the solution
thoroughly and wait for 5 min. The white precipitate is
AgSCN.
Waste Disposal
Liquids: hazardous waste
Practice Problems
.
Problem 1: Consider the following reaction at
equilibrium:
N2(g) + 3H2(g) → 2NH3(g)
AH-92 kJ/mol
a) How is the pressure of ammonia affected if some
nitrogen gas is added?
b) How is the amount of hydrogen gas affected if the
volume of the reaction vessel is doubled? How is K
affected?
c) How is the pressure of hydrogen gas affected if the
temperature is raised? How is K affected?
d) How are the rate of the reverse reaction and the
pressure of hydrogen gas affected if a catalyst is
added?
Problem 2: Consider the following reaction at
equilibrium:
Zn(s) + 2HCl(aq) = ZnCl2(aq) + H2(g)
a) How is [ZnCl2] affected if some HCl is added?
b) Some hydrogen gas is removed. How does this affect
the pH (pH = -log[H3O+])?
c) Some NaOH is added. How does this affect the pH
and the pressure of hydrogen gas?
d) Some solid zinc is added. How does this affect [HC1]?
Answers: 1a) increase, b) increase, no change, c) increase,
decrease, d) increase, no change, 2a) increase, b) increase,
c) increase, decrease, d) no change
gas
ever
Lecree
HCI
loc
A
C
17
77
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