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Explain how adding aqueous NH3 to the combined AgCl - Hg2Cl2 precipitate effects the separation of the two cations?
Aqueous NH3 reacts with AgCl to form [Ag(NH3)2]+ complex ions, so adding NH3 dissolves the AgCl precipitate. However, Hg2Cl2 remains insoluble in the presence of NH3. This selective solubility allows for the separation of Ag+ and Hg2 2+ cations in the mixture.
What is the purpose of adding sulfuric acid?
Sulfuric acid is commonly added to adjust the pH of solutions, such as in industrial processes, water treatment, and laboratory experiments. It is also used in the production of chemicals like fertilizers, detergents, and explosives.
What can be used to distinguish between separate aqueous solutions of potassium Chloride and potassium flouride?
One way to distinguish between separate aqueous solutions of potassium chloride and potassium fluoride is by using silver nitrate solution. When silver nitrate is added to the solutions, a white precipitate forms in the potassium chloride solution due to the formation of silver chloride, while no precipitate will form in the potassium fluoride solution.
What happens to the hydroxide ion concentration in aqueous solutions when you increase the hydrogen ion concentration by adding an acid?
The hydroxide ion concentration would decrease in response to the increase in hydrogen ion concentration. This is due to the neutralization reaction that occurs between the added acid (which releases H+ ions) and the hydroxide ions (OH-) present in the solution.
How do you separate potassium chloride from aqueous potassium chloride?
One way to separate potassium chloride from aqueous potassium chloride is through evaporation. By heating the aqueous solution, the water will evaporate, leaving behind solid potassium chloride. Another method is through precipitation by adding a chemical that reacts with potassium ions to form a solid precipitate of potassium chloride that can then be filtered out from the solution.
Can the concentration of a substance change if it is an aqueous solution?
Yes. An aqueous solution means that at least one solute is dissolved in water. You can increase the concentration by adding more solute, or you can decrease the concentration by adding more water.
What was the purpose of adding nacl to the distillate before extraction with methylene chloride?
Adding NaCl (sodium chloride) to the distillate before extraction with methylene chloride serves to enhance the separation of organic compounds from aqueous solutions. The addition of NaCl increases the ionic strength of the solution, which promotes the "salting out" effect, helping to reduce the solubility of organic compounds in water. This leads to a more efficient extraction of the desired compounds into the organic solvent, methylene chloride, thereby improving the yield and purity of the extracted substances.
When you lower the pH of a solution containing aqueous sodium benzoate a precipitate eventually forms What will happen if you then raise the pH after the reaction by adding aqueous NaOH?
When you raise the pH by adding aqueous NaOH after a precipitate forms in a solution of aqueous sodium benzoate due to a pH decrease, the precipitate likely dissolves. This is because sodium benzoate is the conjugate base of benzoic acid, so at higher pH levels, it remains in solution. The sodium benzoate will revert back to being fully soluble in its aqueous form.
What is the color of aqueous bromine after addition of the hydrocarbon?
The aqueous bromine will change from orange to colorless after addition of a hydrocarbon due to the formation of an organic bromide compound.
What produces white precipitation when reacted with aqueous barium nitrate?
Adding a solution of Sodium Sulphate to aqueous Barium Nitrate will produce a white precipitate of Barium Sulphate with Sodium Nitrate remaining in solution.
What is the purpose of adding sugar to cookie dough?
The purpose is to make it sweet.
Explain how adding aqueous NH3 to the combined AgCl - Hg2Cl2 precipitate effects the separation of the two cations?
Aqueous NH3 reacts with AgCl to form [Ag(NH3)2]+ complex ions, so adding NH3 dissolves the AgCl precipitate. However, Hg2Cl2 remains insoluble in the presence of NH3. This selective solubility allows for the separation of Ag+ and Hg2 2+ cations in the mixture.
What is the purpose of adding NaCl solution to the soap mixture?
Adding NaCl solution to the soap mixture helps to separate the soap from the aqueous solution. This process is called salting out, where the addition of salt reduces the solubility of the soap, causing it to precipitate out of the solution.
What are the purposes of adding so?
There are not much purpose of that.
What is the purpose of adding sulfuric acid?
Sulfuric acid is commonly added to adjust the pH of solutions, such as in industrial processes, water treatment, and laboratory experiments. It is also used in the production of chemicals like fertilizers, detergents, and explosives.
What can be used to distinguish between separate aqueous solutions of potassium Chloride and potassium flouride?
One way to distinguish between separate aqueous solutions of potassium chloride and potassium fluoride is by using silver nitrate solution. When silver nitrate is added to the solutions, a white precipitate forms in the potassium chloride solution due to the formation of silver chloride, while no precipitate will form in the potassium fluoride solution.
How can most liquid solutions be made more dilute?
by adding more solvent to them
