I think the "less than" sign is an error and it's supposed to be "greater than". If not, please explain to me how to interpret it.
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I think the "less than" sign is an error and it's supposed to be
"greater than"....
A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCl was...
A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCl was added and a precipitate formed. The precipitate was filtered off. 2. H,S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off. 3. The pH was raised to about 9 and H,S was again bubbled through the solution. No precipitate formed. 4. Finally, sodium carbonate was added. A precipitate formed and was filtered off. What can be said about the...
Candidate l: Zn(s) | Zn2+(aq,0.500 M) I Cu2+(aq, 1.00 M) Cu(s) Candidate 2: Pb(s) | Pb2+(aq,...
Candidate l: Zn(s) | Zn2+(aq,0.500 M) I Cu2+(aq, 1.00 M) Cu(s) Candidate 2: Pb(s) | Pb2+(aq, 0.500 M) || Cu2+(aq, 1.00 M) Cu(s) Candidate 3: Mg(s) | Mg2+(aq, 0.500 M) | Pb2+(aq, 1.00 M)| Pb(s) (a) 6 pts) Choose one of the candidate voltaic cells #1, #2, or #3. Draw a schematic cell diagram for the candidate voltaic cell of choice. Clearly label anode, cathode, electrodes, ions and their concentrations, salt bridge, and the flow of electrons. (b) (5 pts)...
Calculate pFe2+ at each of the points in the titration of 25.00 mL of 0.02166 M...
Calculate pFe2+ at each of the points in the titration of 25.00 mL of 0.02166 M Fe2+ by 0.03644 M EDTA at a pH of 5.00. The values for log K and (y can be found in the chempendix. 13.00 mL pFe2+ = the equivalence point, V. pFe? 17.50 mL pFe2+ = Formation Constants > Formation Constants for metal-EDTA Complexes Ion Li+ Ion T13+ Bi3+ log Kf 35.3 27.8a Na+ K+ Be2+ Mg2+ Ca2+ Sr2+ Ba2+ Ce3+ Pr3+ Nd3+ Pm3+...
For all of the following experiments, under standard conditions, which species could be spontaneously produced? A...
For all of the following
experiments, under standard conditions, which species could be
spontaneously produced?
A lead wire is placed in a solution containing
Cu2+
yes no Cu
yes no PbO2
yes no No reaction
Crystals of I2 are added to a solution of
NaCl.
yes no I-
yes no No reaction
yes no Cl2
A silver wire is placed in a solution containing
Cu2+
no yes Cu
no yes No reaction
no yes Ag+
Half-Reaction 8° (V) Half-Reaction 8° (V) 2.87 1.99 1.82 1.78 1.70 1.69 1.68 1.60...
1.) Refer to the table given for the ionic radii in your lab manual and approximate...
1.) Refer to the table given for the ionic radii in your lab
manual and approximate the attractive portion of the lattice energy
for 1 mole of the following salts. (Consider only one bond if more
than one bond exists.)
(a) MgS
______
J
(b) Fe3N2
______J
(c) CoCl2
______
J
2.) Using the values you just calculated, rank the salts from
least to most soluble based on their attractive portion of their
lattice energy. (Use the appropriate <, =, or > symbol...
1. How do I read the half reaction table? 2. If im asked for the best...
1. How do I read the half reaction table?
2. If im asked for the best reducing agent from Cu+, Ag+, F2, and
Fe3+, where do I look first in the table? before the arrow or after
the arrow?
3. Sometimes a value that has originally a positive (V) from the
table it will have the negative sign in a homework problem, and
viceversa, so the question is, how do I use the positive and
negative signs in respect to...
the first picture is about some useful information, and the second picture is the question that...
the first picture is about
some useful information, and the second picture is the question
that bothers me. I wonder how we know the half-cell reaction of it.
Please explain!!!
TABLE 18.1 | Standard Reduction Potentials at 25°C (298 K) for Many Common Half-Reactions 8° (V) 0.40 0.34 0.27 0.22 0.20 0.16 0.00 Half-Reaction F2 + 2e →2F Ag2+ + e +Agt Co3- + e + CO2- H2O2 + 2H+ + 2e +2H20 Ce+ + e + Ce+ PbO2 +...
Find the best reducing agent from Cu+, Ag+ F2 and Fe3+ #1. In the reduction table...
Find the best reducing agent from Cu+, Ag+ F2 and Fe3+
#1. In the reduction table i can see several repeated values of
Fe3+ one is equal to 0.77v and the second one is equal to -0.036v
so, which one do I choose? Please explain.
#2.If I'm asked to find the best oxidation agent, from the
values already provided (Cu+, Ag+ F2 and Fe3+) which one would it
be? and how would I decide from repeated values, like in #1,...
part is wrong, help me solving it please Determine the pH of a solution containing 0.050...
part is wrong, help me solving it please
Determine the pH of a solution containing 0.050 M NaOH and 0.030 M KI neglecting activities, pH = 12.7 Determine the pH of the same solution including activities. Activity coefficients at various ionic strengths can be found in this table. pH = 12.7 + C sites.google.com/site/chempendix/activity-coefficients-for-aqueous-solutions-at-25- Ion Ionic Strength(M) 0.01 size 0.001 0.005 0.05 ton 0.1 (apm) Charge= +/-1 900 0.967 0.966 0.965 (CH2CHCO2, (C3H7)4N ( ON)CH20 (C3H)NH, CH3OH4CO2 Activity coefficient (Y)...
Q3 need to answer the follow pictures can help to do the question pictures are not...
Q3 need to answer the follow pictures can help to do the
question
pictures are not that clear but still can see the number in
question. It should be fine t solve the problem
Question 3 0 / 1 point What is the pH of a 0.00200 F solution of hypobromous acid (HOBr) in pure water? (aokr. = 350 pm) Answer: 2.72 TABLE 1-1 Activity coefficients for aqueous Solutions at 251 Ion size (a, pm) Ion 0.001 0.1 Ionic strength...
A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCl was added and a precipitate formed. The precipitate was filtered off. 2. H,S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off. 3. The pH was raised to about 9 and H,S was again bubbled through the solution. No precipitate formed. 4. Finally, sodium carbonate was added. A precipitate formed and was filtered off. What can be said about the...
Candidate l: Zn(s) | Zn2+(aq,0.500 M) I Cu2+(aq, 1.00 M) Cu(s) Candidate 2: Pb(s) | Pb2+(aq, 0.500 M) || Cu2+(aq, 1.00 M) Cu(s) Candidate 3: Mg(s) | Mg2+(aq, 0.500 M) | Pb2+(aq, 1.00 M)| Pb(s) (a) 6 pts) Choose one of the candidate voltaic cells #1, #2, or #3. Draw a schematic cell diagram for the candidate voltaic cell of choice. Clearly label anode, cathode, electrodes, ions and their concentrations, salt bridge, and the flow of electrons. (b) (5 pts)...
Calculate pFe2+ at each of the points in the titration of 25.00 mL of 0.02166 M Fe2+ by 0.03644 M EDTA at a pH of 5.00. The values for log K and (y can be found in the chempendix. 13.00 mL pFe2+ = the equivalence point, V. pFe? 17.50 mL pFe2+ = Formation Constants > Formation Constants for metal-EDTA Complexes Ion Li+ Ion T13+ Bi3+ log Kf 35.3 27.8a Na+ K+ Be2+ Mg2+ Ca2+ Sr2+ Ba2+ Ce3+ Pr3+ Nd3+ Pm3+...
For all of the following
experiments, under standard conditions, which species could be
spontaneously produced?
A lead wire is placed in a solution containing
Cu2+
yes no Cu
yes no PbO2
yes no No reaction
Crystals of I2 are added to a solution of
NaCl.
yes no I-
yes no No reaction
yes no Cl2
A silver wire is placed in a solution containing
Cu2+
no yes Cu
no yes No reaction
no yes Ag+
Half-Reaction 8° (V) Half-Reaction 8° (V) 2.87 1.99 1.82 1.78 1.70 1.69 1.68 1.60...
1.) Refer to the table given for the ionic radii in your lab
manual and approximate the attractive portion of the lattice energy
for 1 mole of the following salts. (Consider only one bond if more
than one bond exists.)
(a) MgS
______
J
(b) Fe3N2
______J
(c) CoCl2
______
J
2.) Using the values you just calculated, rank the salts from
least to most soluble based on their attractive portion of their
lattice energy. (Use the appropriate <, =, or > symbol...
1. How do I read the half reaction table?
2. If im asked for the best reducing agent from Cu+, Ag+, F2, and
Fe3+, where do I look first in the table? before the arrow or after
the arrow?
3. Sometimes a value that has originally a positive (V) from the
table it will have the negative sign in a homework problem, and
viceversa, so the question is, how do I use the positive and
negative signs in respect to...
the first picture is about
some useful information, and the second picture is the question
that bothers me. I wonder how we know the half-cell reaction of it.
Please explain!!!
TABLE 18.1 | Standard Reduction Potentials at 25°C (298 K) for Many Common Half-Reactions 8° (V) 0.40 0.34 0.27 0.22 0.20 0.16 0.00 Half-Reaction F2 + 2e →2F Ag2+ + e +Agt Co3- + e + CO2- H2O2 + 2H+ + 2e +2H20 Ce+ + e + Ce+ PbO2 +...
Find the best reducing agent from Cu+, Ag+ F2 and Fe3+
#1. In the reduction table i can see several repeated values of
Fe3+ one is equal to 0.77v and the second one is equal to -0.036v
so, which one do I choose? Please explain.
#2.If I'm asked to find the best oxidation agent, from the
values already provided (Cu+, Ag+ F2 and Fe3+) which one would it
be? and how would I decide from repeated values, like in #1,...
part is wrong, help me solving it please
Determine the pH of a solution containing 0.050 M NaOH and 0.030 M KI neglecting activities, pH = 12.7 Determine the pH of the same solution including activities. Activity coefficients at various ionic strengths can be found in this table. pH = 12.7 + C sites.google.com/site/chempendix/activity-coefficients-for-aqueous-solutions-at-25- Ion Ionic Strength(M) 0.01 size 0.001 0.005 0.05 ton 0.1 (apm) Charge= +/-1 900 0.967 0.966 0.965 (CH2CHCO2, (C3H7)4N ( ON)CH20 (C3H)NH, CH3OH4CO2 Activity coefficient (Y)...
Q3 need to answer the follow pictures can help to do the
question
pictures are not that clear but still can see the number in
question. It should be fine t solve the problem
Question 3 0 / 1 point What is the pH of a 0.00200 F solution of hypobromous acid (HOBr) in pure water? (aokr. = 350 pm) Answer: 2.72 TABLE 1-1 Activity coefficients for aqueous Solutions at 251 Ion size (a, pm) Ion 0.001 0.1 Ionic strength...
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