The acid and the base are used to remove all the other "stuff" from the sample, and leave only the fiber. There are challenges in that when we remove the sugar and starch (acid hydrolysis), and the protein and carbohydrates (the base hydrolysis), we should have just fiber left. But some of the fiber is lost to the two-stage chemical hydrolysis we just ran the sample through. We are then left with the challenge of making an estimate (the "determination") of the crude fiber based on what we know about the sample, about the procedure and about the quantity of the fiber we observe at the end of the chemical processes.
H2SO4 + 2 NaOH --> Na2SO4 + 2 H2O. Sulfuric Acid + Sodium Hydroxide --> Sodium Sulfate + Water.
The reactions of sodium hydroxide and calcium hydroxide with sulfuric acid will produce sodium sulfate and calcium sulfate respectively (water will be another product in both reactions. Sodium sulfate is soluble in water and so will remain in solution. Calcium sulfate, however, is insoluble and will precipitate as a solid.
sulphuric acid
They are not comparable. Sulfuric acid is corrosive to some other material then Sodium hydroxide and vice verse.
No. The reaction of sodium hydroxide with sulfuric is more exothermic. And hence it is preferred to pour a solution of sodium bicarbonate or potassium bicarbonate in the case of spills.
H2SO4 + 2 NaOH --> Na2SO4 + 2 H2O. Sulfuric Acid + Sodium Hydroxide --> Sodium Sulfate + Water.
The reactions of sodium hydroxide and calcium hydroxide with sulfuric acid will produce sodium sulfate and calcium sulfate respectively (water will be another product in both reactions. Sodium sulfate is soluble in water and so will remain in solution. Calcium sulfate, however, is insoluble and will precipitate as a solid.
sulphuric acid
yes but sodium hydroxide will be neutralized by one or both acids
They are not comparable. Sulfuric acid is corrosive to some other material then Sodium hydroxide and vice verse.
No. The reaction of sodium hydroxide with sulfuric is more exothermic. And hence it is preferred to pour a solution of sodium bicarbonate or potassium bicarbonate in the case of spills.
Na2SO4 and H2O
Determination of the concentration of sodium hydroxide in solution with the help of a neutralization reaction.
Sulfuric acid plus sodium hydroxide gives sodium sulfate plus water.
Hydrochloric acid Sulfuric acid Phosphoric acid Sodium hydroxide Calcium hydroxide Potassium hydroxide
That sounds right.
acid + base = salt + water