When sodium hydroxide, NaOH, solution is added to Part B of the copper cycle, precipitate does...

When sodium hydroxide, NaOH, solution is added to Part B of the copper cycle, precipitate does not immediately form. What else is present in the reaction mixture from the first part of the cycle that causes this? Is it nitric acid?

Solutions

Expert Solution

The hydroxide ions (OH^–) from the NaOH(aq) neutralize the excess hydronium ions (H₃O⁺) left over from the previous part. Once all the H₃O⁺ (HNO₃ + H₂O --> H₃O⁺ + NO₃^-) ions are neutralized, additional OH^– ions react with the Cu²⁺ complex ion to form a gelatinous blue Cu(OH)₂ precipitate. Precipitate does not immediately form until all the H₃O⁺ ions are neutralized. This can be understand pictorially as shown below.

Thank You So Much! Please Rate this answer as you wish.

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

Using the above sodium hydroxide solution, 27.21 mL of the NaOH solution is required to neutralize...

Using the above sodium hydroxide solution, 27.21 mL of the NaOH solution is required to neutralize a volume of 28.45 mL of an acetic acid solution having an unknown concentration to a phenolphthalein end point. Determine the concentration, in molarity, of the acidic solution. Start with a balanced equation.

A solution of sodium hydroxide was neutralized by sulfuric acid. The volume of sodium hydroxide solution...

A solution of sodium hydroxide was neutralized by sulfuric acid. The volume of sodium hydroxide solution used was 675.0 mL, and the concentration was 0.875 M. Calculate the moles of sulfuric acid that were neutralized (assuming that the reaction goes to completion). Give your answer to three significant figures. 2NaOH (aq) + H2SO4 (aq) ? Na2SO4 (aq) + 2H2O (l

Will a precipitate form when 50.0 mg of sodium chloride is added to 250.0 mL of...

Will a precipitate form when 50.0 mg of sodium chloride is added to 250.0 mL of a 0.100 M solution of silver nitrate? If so, how many grams of precipitate form? Clearly show all your calculations.

Will a precipitate form when 50.0 mg of sodium chloride is added to 250.0 mL of...

Will a precipitate form when 50.0 mg of sodium chloride is added to 250.0 mL of a 0.100 M solution of silver nitrate? If so, how many grams of precipitate form? Clearly show all your calculations.

When ammonia is added to a solution that has Cu(OH)2(s) precipitate in it, the precipitate dissolves....

When ammonia is added to a solution that has Cu(OH)2(s) precipitate in it, the precipitate dissolves. Use Le Châtelier’s principle to explain this.

Which test uses sodium hydroxide and copper sulfate? What does it test for? Is there a...

Which test uses sodium hydroxide and copper sulfate? What does it test for? Is there a color change? Does it need to be heated? Benedicts Sugar Yes, it turns to a copper red color Yes, it needs to be heated Biuret Protein Yes, it turns purple to violet No, it does not need to be heated Specific gravity Density No, it does not change color No, it does not need to be heated Diastik Sugar Yes, the color change indicates...

A mixer used to prepare 1000 kg of 8 wt% sodium hydroxide (NaOH) solution. The feeds...

A mixer used to prepare 1000 kg of 8 wt% sodium hydroxide (NaOH) solution. The feeds to the mixer are 10 mol% sodium hydroxide solution in water and pure water. What are the quantities (in kg) of pure water and 10 mol% sodium hydroxide solution to be added to the tank?

AQUEOUS SODIUM HYDROXIDE (NAOH) SOLUTION HAVE 0.6 MOLAR, FLOW INTO A PROCESS UNIT AT A RATE...

AQUEOUS SODIUM HYDROXIDE (NAOH) SOLUTION HAVE 0.6 MOLAR, FLOW INTO A PROCESS UNIT AT A RATE OF 3.5 FT33/MIN. THE SP. G OF THE SOLUTION IS 1.1. CALCULATE; 1. THE MASS CONC. OF NAOH IN KG/M33. 2. THE MASS FLOW RATE OF NAOH IN KG/MIN. 3. THE MASS FRACTION OF NAOH.

When 2.50 g of sodium hydroxide (NaOH) was dissolved in 100.00 g of water a value...

When 2.50 g of sodium hydroxide (NaOH) was dissolved in 100.00 g of water a value of 12.00oC was obtained for ΔT. Calculate the molarity of the sodium hydroxide solution. Calculate the value (calories) for the heat of solution of 2.50 g of NaOH Calculate the number of calories that would be produced if one mole of sodium hydroxide was dissolved. (ΔHsolnNaOH)

What is the pH of the solution when 10.005g of sodium hydroxide is dissolved in 500mL...

What is the pH of the solution when 10.005g of sodium hydroxide is dissolved in 500mL of 0.5M acetic acid. pKa value for acetic acid is 4.74.

Subjects