Inorganic Chemistry Answers

How would you detect the presence of Chloride, Bromide and Iodide in presence of each other?

1h ago

Alan Carifio

Chlorine Dioxide Generation from 3 solutions?

Using a 25% Sodium Chlorite solution with a 15% Sodium Hypochlorite solution and a 31% Muriatic Acid solution (HCL) to generate Chlorine Dioxide. I have 3 different strengths of solutions to produce chlorine dioxide. Do I have to account for the 3 different strengths when I write out my chemical eqaution?

Reaction:

2NaClO2 + NaOCl + 2HCL yields 2ClO2 + 3NaCl + H20 (correct??)

181 mw + 74.5mw + 73 mw yields 125 mw + 175.5 mw

328.5 = 328.5

55% Sodium Chlorite, 23% Chlorine, 22% Muriatic Acid yields 41% C Dioxide, 53% NaCl, 6% H20 (correct)

50 gals of Sodium Chlorite, plus (50x0.23) to get 11.5 gals of Hypo plus(50x0.22) to get 11 gals of HCL to yield 41% of the Chlorine Dioxide gas from the total reaction? Do I have to take in to account the % of each solution? Do I have to adjust the stochiometric equation ?

25% Sodium Chlorite = 10.59 lbs/gal

15% Hypo = 10.42 lbs gal

HCL (muriatic acid) = 9.67 lbs/gal

A

Alan Carifio

1.Calculate the pH of an aqueous solution of a 0.039 M HCI.

2. Calculate the pOH of an aqueous solution of .0.073 M LiOH.

3. The pOH of a solution of NaOH is 11.30. What is the [H*] for this solution?

4. The pH of a 0.02 M solution of an unknown weak acid is 3.7. what is the pKa of this acid?

5. What is the concentration of ammonium chloride in a solution if its pH is 4.80?

6. The pH of a solution is 4.80. What is the concentration of hydroxide ions in this solution?

1. Calculate the pH of water in a cloud that has equilibrated with SO₂(g) at a concentration of 1.0 ppm by volume.
2. A solution contains 2 mg/L CN^- and is at pH 8.5

• What is the concentration of HCN(aq) in solution?
• If the partial pressure of HCN(g) above the solution is 10^-6 atm, would HCN transfer from the gas phase into solution or from the solution into the gas, or is the system at equilibrium?