Complete and balance the following equations, and identify the oxidizing and reducing agents. (Use the lowest possible coefficients. Include states-of-matter (s), (l), (g), (aq) similar to the given reaction.)
(a) MnO4-(aq) + Cl-(aq) ? Mn2+(aq) + Cl2(g) (acidic solution)
Balanced equation:16H+(aq)+2MnO4-(aq)+10Cl-(aq) ? 2Mn2+(aq)+5Cl2(g)+8H2O(l)
oxidizing agent:   MnO4-Correct.
Reducing agent: Cl- Correct

(b) I2(s) + OCl-(aq) ? IO3-(aq) + Cl-(aq) (acidic solution)

oxidizing agent:OCl- Correct
reducing agent:I2 Correct

(c) Cr2O72-(aq) + I-(aq) ? Cr3+(aq) + IO3-(aq) (acidic solution)
Balanced equation
oxidizing agent  
reducing agent

(d) Pb(OH)42-(aq) + ClO-(aq) ? PbO2(s) + Cl-(aq) (basic solution)
Balanced equation
oxidizing agent
reducing agent

Just starting to get really frustrated with these. I know how to do them (I completed the first one without much issue) but cannot get the rest of them. I don't know what it is that I'm missing/doing wrong. will give addition points for the correct answer as well as good work. Thank you in advance!!!

-In the early seasons of Breaking Bad, Walt and Jessie can frequently be seen testing the pH of their downstream product using commercially available indicators intended for pool water testing. When might it be advantageous to use an indicator vs a pH electrode?

-A student tested a solution with a pH meter and recorded the pH to be 7.43. Calculate the [H3O+] and [OH-] for this solution. (Show your work!)

Problem PageQuestion Liquid octane CH3CH26CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. Suppose 58.3 g of octane is mixed with 71. g of oxygen. Calculate the minimum mass of octane that could be left over by the chemical reaction. Round your answer to 2 significant digits.

a) An iron sulfide contains 36.5% S by mass. The iron sulfide is heated in an atmosphere of pure oxygen, which produces SO2(g) and an iron oxide containing 27.6% O by mass.

Write a balanced equation for the reaction.

If 1.0 kg of the iron sulfide reacts with excess oxygen, what is the theoretical yield of the iron oxide?

b) In the manufacture of Portland cement, limestone (CaCO3(s)) is decomposed into lime (CaO(s)) and CO2(g), in a kiln. Use data from Appendix C in your textbook to calculate how much heat is required to decompose 2.70 × 103 kg of limestone. (Assume that the heats of reaction are temperature independent.)

In experiments concerned with the photoelectric effect, which of the following will increase the kinetic energy of an electron ejected from a metal surface? 1. increasing the wavelength of the light striking the surface 2. increasing the frequency of the light striking the surface 3. increasing the number of photons of light striking the surface A) 1 only B) 2 only C) 3 only D) 1 and 3 E) 1, 2, and 3

What is the product of 4-tert-butyl phenol reacted with p-bromobenzyl bromide when potassium hydroxide and ethanol is added with microwave heating.

Consider the titration of a 38.0mL sample of 0.170M  HBr with 0.205M KOH. Determine each of the following:

Part A: the initial pH

Part B: the volume of added base required to reach the equivalence point

Part C: the pH at 11.0mL of added base

Part D: the pH at the equivalence point

Part E: the pH after adding 5.0 mL of base beyond the equivalence point

The following information is to be used for the next two questions. Molar absorptivity data for the cobalt and nickel complexes with 2,3-quinoxalinedithiol are ε_Co = 36400 and ε_Ni = 5520 at 510 nm and ε_Co = 1240 and ε _Ni = 17500 at 656 nm. A 0.514-g sample was dissolved and diluted to 100.0 mL. A 25.0-mL aliquot was treated to eliminate interferences; after addition of 2,3-quinoxalinedithiol, the volume was adjusted to 50.0 mL. This solution had an absorbance of 1.246 at 510 nm and 0.367 at 656 nm in a 1.00-cm cell.

1. Calculate the concentration of cobalt (in ppm) in the initial solution prepared by dissolving the sample.

2. Calculate the concentration of nickel (in ppm) in the initial solution prepared by dissolving the sample.

I have some chemistry questions. please get all the answers correct ;)

a) Calculate the standard cell potential for the following cell

Zn (s) | Zn²⁺ (aq) (1M) || Co²⁺ (aq) (1M) | Co (s)

answer = __________V

b) The following cell was constructed and found to produce a voltage of 1.08 V.

Co (s) | Co²⁺ (aq) (1M) || Ag⁺ (aq) (1M) | Ag (s)

Calculate the standard reduction potential for Ag⁺ (aq) | Ag (s)

answer = _______V

c) Which of these species is the best oxidising agent?

Standard Reduction Potentials

Cu²⁺ | Cu    +0.34V

Ni²⁺ | Ni     �0.24V

Co²⁺ | Co    �0.28V

Fe²⁺ | Fe        �0.44V

Zn²⁺ | Zn    �0.76V

Mg²⁺ | Mg       �2.36V

Explain the difference between weak-field and strong-field metal complexes.

(around 200 words please)

Steam distillation. ANSWER IN DETAIL AND I WILL REWARD FIVE STARS TO FIRST PERSON TO ANSWER!!!!!!

A student steam distilled a mixtrue of toluene (bp 110.8 degrees Celsius) and water and noticed that distillate contained a larger volume of touleune than water. The student said to the professor, "I know there is something wrong with my experiment. I should have more water than toleune because water has a lowerboiling point. Should I redo the experiment?" The professor replied "do whatever you need to do" A classmate then said, "No, you dont need to redo it you DO have more water."

Explain in detail why the classmate is correct. Use calculations to support your explanation. Label all quantities used. Include all units.

Which cobalt complex was favored when the solution was taken off the heat plate and put in an ice bath? The solution contained deionzied water, ethanol, and cobalt II chloride. The solution went from blue to pink. If you could explain this using Le Chatelier's principle, thank you!

construct a flow diagram for Dehydration of Methylcyclohexanol via Gas Chromatography experiment.

Consider the reaction

CO(g)+NH3(g)⇌HCONH2(g),    Kc=0.760

If a reaction vessel initially contains only CO and NH3 at concentrations of 1.00 M and 2.00 M, respectively, what will the concentration of HCONH2 be at equilibrium?

What is the final pH when 9.77 g of phosphoric acid (98.00 g/mol) and 4.75 g of NaOH (40.00 g/mol) are added to 1 L of water. K_a1 = 1.1 x 10^-2 K_a2 = 7.5 x 10^-8 K_a3= 4.3 x 10^-13