Design a protocol with a list of glassware needed and calculations to prepare a 100-mL homogeneous solution of HCl/FeCl3 with 0.025 M of FeCl3 and 0.10 M of HCL.

The following reagants are available:

3 M HCl and Solid FeCl3 . 6 H2O

Determine the percent yield for an acid/base reaction that involves mixing 500. mL of 0.100 molar nitric acid with 500. mL of 0.0500 molar barium hydroxide and a 0.00200 molar solution of barium nitrate is produced.

Using standard reduction potentials, calculate the standard emf, free energy, and equilibrium constant at 298K for each of the following reactions:

a. Cl2(g) + 2 I-(aq) → 2 Cl-(aq) + I2(s)

b. 2 NO3-(aq) + 8 H+(aq) 3 Cu(s) → 2 NO(g) + 4 H2O(l) + 3 Cu2+(aq)

c. Fe(s) + 2 Fe3+(aq) → 3 Fe2+(aq)

Ive posted this twice already and the answers have been really inconsistant

A 4.10 −g sample of a mixture of CaO and BaO is placed in a 1.00-L vessel containing CO2 gas at a pressure of 735 torr and a temperature of 26 ∘C. The CO2 reacts with the CaO and BaO, forming CaCO3 and BaCO3. When the reaction is complete, the pressure of the remaining CO2 is 155 torr .

Calculate the number of moles of CO2 that have reacted.

Calculate the mass percentage of CaO in the mixture.

Mobile charges of the following (if any):

Copper wire, Plastic, Sodium Carbonate, Aluminum Foil, Wood, Glass, Silver Wire, Graphite, Potassium Chloride, Lead, Silicon, Potassium accetate (solid), Potassium accetate (liquid), Dime, Sulfur, Sugar, Penny, Celery, HCI(g) in ligroin, 1.0M Sulfuric Acid, 1.0M ammonia solution, Acetic acid + ammonia miixture, .10M Sulfuric Acid, .10 Barium Hydroxide, Sulfuric acid + barium hydroxide, DI water, Tap Water, Pure Ethonal, Pure Acetic Acid, 95% Ethonal, .10M acetic Acid, .0010HCI, .010M HCI, .10M HCI, 1.0M HCI, Aqueous sodium carbonate, Aqueous calcium carbonate.

1.

Calculate the approximate pH of the following aqueous solutions at 25C. (Note: consider one decimal place for the pH answer.)

a) H₃PO₄ (0.20 M), (pK_a1=2.15, pK_a2=7.15, pK_a3=12.38)

b) Na₂CO₃ (0.20 M), (pK_a H₂CO₃/HCO₃^? = 6.35, pKa HCO₃^?/CO₃^2? = 10.30)

c) NaHCO₃ (0.20 M) (use pKa values from part "b" above)

a

b

c

2.

Calculate the approximate pH of the following aqueous solutions at 25C. (Note: consider one decimal place for the pH answer.)

a) NH₄Cl (0.20 M) + CH₃COONa (0.40M) , (pK_a NH₄⁺/NH₃ = 9.24, pK_aCH₃COOH/CH₃COO^? = 4.76)

b) NH₃ (0.040 M)+ NaOH (0.040M)

a

b

3.

Calculate the approximate pH of the following aqueous solutions at 25C. (Note: consider one decimal place for the pH answer.)

a) H₂S (0.10 M) + H₃PO₄ (0.20M) , (pK_aH₂S/HS^? = 7.02, pK_a HS^?/S^2? = 13.99, and H₃PO₄ pK_a values are given in part "a" of question 1)

b) H₃PO₄ (0.20M) + NaH₂PO₄ (0.10 M) (use pKa values given in question 1)

c) NH₄H₂PO₄ (0.1 0M) (pKa values are given in question 1 and 2 )

a

b

c

4.

A chemist prepares a solution that contains a formal concentration of 0.5 M phthalic acid and that has a pH of 2.88. What is the approximate fraction of phthalic acid in this solution at 25 C? Use 1 sig figs for the answer

Phthalic Acid: HOOCC₆H₄COOH/HOOCC₆H₄COO^- pKa1 = 2.95, HOOCC₆H₄COO^-/^-OOCC₆H₄COO^- pKa₂ = 5.41

Bonus: For more practice find the fractions of other species (forms) at this pH and decide which one is the predominant form. Plot an approximate curve of alpha vs pH for each species. You can hand them in for extra credit.

5.

How many grams of Ba(IO₃)₂ (FW=487 g/mol) can be dissolved in one liter of the following solutions at 25C? (Ba(IO₃)₂K_sp=1.57x10^?9) Use three significant figures for the answer. You do not need to consider the effect of electrolyte.

a) In water.

b) In a solution of Ba(NO₃)₂ (0.0700M)

a

b

6.

If a 0.100 M solution of NaOH is added to a solution containing 0.200 M Ni²⁺, 0.200 M Ce³⁺, and 0.200 M Cu²⁺, which metal hydroxides will precipitate first and last, respectively? K_sp for Ni(OH)₂ is 6.0x10^?16, for Ce (OH)₃ is 6.0 x 10^?22, and for Cu(OH)₂ is 4.8x10^?20.

A) Ni(OH)₂ first, Cu(OH)₂ last
B) Cu(OH)₂ first, Ni(OH)₂ last
C) Ni(OH)₂ first, Ce(OH)₃ last
D) Cu(OH)₂ first, Ce(OH)₃ last
E) Ce(OH)₃ first, Cu(OH)₂ last

Give detailed explanation

Research shows that GC analysis of the tert-butyl halides may be diffcult because the products may undergo elimination during the process. What would be the product of the elimation? show work and explain please

What is the pH of 0.005 M Ba(OH)2 solution?
a) 12
b) 2
c) 0.005
d) -2

Write the balanced chemical equation for the dissolving of copper carbonate in water, and write its equilibrium expression. Calculate the concentration of copper in the saturated solution using the experimental cell potential (0.21 volts). Calculate the Ksp for copper (II) carbonate using the concentration of copper found in the previous question (the previous question is "calculate the concentration of copper...").

1a) Linolenic acid (C18H30O2) can be hydrogenated to stearic acid by reacting it with hydrogen gas according to the equation:
C18H30O2 + 3H2 → C18H36O2
What volume of hydrogen gas, measured at STP, is required to react with 10.5 g of linolenic acid in this reaction?

1b) What volume of nitrogen dioxide is formed at 705 torr and 28.2 °C by reacting 1.95 cm3 of copper (d = 8.95 g/cm3) with 1.50 L of nitric acid 2.53 M?

Determine the limiting reagent and calculate the theoretical mass of aluminum sulfate formed and the volume of hydrogen gas at 23^oC and 752 mm Hg formed if 10.00g of aluminum is reacted with 10.00g of sulfuric acid. Be sure to show proper formulas, balanced chemical equations, solution maps and a clear and complete set-up as instructed including proper dimensional analysis as appropriate for the problem.

                        INTEGRATED SELF DIRECTED WORK                                                       

INSTRUCTIONS

Prepare a report and submit asper the deadline.

References should be Harvard style.

Report must be submitted as per the deadline.

Case:

A mixture containing 45% benzene (b) and 55% toluene (t) by mass is fed to a distillation column. an overhead stream of 95 wt% b is produced, and 8% of the benzene fed to the column leaves in the bottom stream, the feed rate is 2000 kg/h.

ENGINEERING MATERIALS

1. Suggest the Suitable Material to fabricate the Distillation column.

2. Identify the corrosive behavior of chemicals to the selected material and calculate the corrosion allowances for thickness of the column.

3. Explain the suitable maintenance procedure involved in distillation column.

PROCESS CALCULATION

1. Write the hypothesis for the above distillation column calculations.

2. Determine the overhead flow rate and the mass flow rates of benzene and toluene in the bottom stream.

3. Draw the flowsheet and investigate the required output streams.

TECHNICAL MATHEMATICS

Draw the graph for Temperature Vs Vapor pressure Benzene and Vapor pressure of toluene.

Vapor pressure data of benzene and toluene

Assume Feed (F) is directly proportional to the Distillate(3 + 4 = 7 Marks)

                        F=f (D)

f (D)= 4D³ 5D² + 2D + 8.

Determine the interval for which the distillate is increases, decreases and constant.

Show that whether the feed F is max, min or neither. Also determine the possible value of F.

An ethylene glycol solution contains 24.6 g of ethylene glycol (C2H6O2) in 89.8 mL of water. (Assume a density of 1.00 g/mL for water.)

a. Determine the freezing point of the solution in degrees Celsius.

b. Determine the boiling point of the solution in degrees Celsius.

What is the pH at the equivalence piont in the titration of 25 mL of .10 M HOAc with .1 M NaOH? Ka= 1.8x10^-5?

Please show work?