What is the concentration of sulfuric acid in concentrated H2SO4?
Concentrated sulfuric acid is 96% or 98% H2SO4 with the remainder water. Fuming sulfuric acid is 100% H2SO4 plus dissolved SO3. The SO3 will react with water to make H2SO4. It is thus equivalent on a simple acid-base balance to more than 100% H2SO4.
How many halides can reduce concentrated sulphuric acid?
All four compounds react with concentrated sulphuric acid but only two can reduce it. (i) Identify the two halides which do not reduce concentrated sulphuric acid. Write an equation for the reaction which does occur with one of these two halides. Identify the two halides which reduce concentrated sulphuric acid to sulphur dioxide.
What is the difference between concentrated and dilute sulfuric acid?
When it comes to sulfuric acid, dilute sulfuric acid is stronger than a concentrated one. If you go to any industry, you will find that they are storing concentrated acids in stainless steel tanks and the concentration of the acid is not allowed to fall below 95%.
Which ion can reduce sulphuric acid to three different products?
Iodide ions can reduce sulphuric acid to three different products. (i) Name the three reduction products and give the oxidation state of sulphur in each of these products.
Which compounds react with concentrated sulphuric acid?
D. (a) Samples of solid sodium fluoride, sodium chloride, sodium bromide and sodium iodide are each warmed separately with concentrated sulphuric acid. All four compounds react with concentrated sulphuric acid but only two can reduce it. (i) Identify the two halides which do not reduce concentrated sulphuric acid.
What is the difference between sodium iodide and phosphoric acid?
The reaction between sodium iodide and concentrated phosphoric acid produces hydrogen iodide but no iodine. The reaction of sodium iodide with concentrated sulphuric acid produces mainly iodine. The difference in product occurs because, in comparison with sulphuric acid, phosphoric acid is. A the weaker acid.
Is Br2 a weaker oxidising agent than Cl2?
Br2 is a weaker oxidising agent than Cl2 (1) (or converse) OR Br2 is less reactive than Cl2penalise Cl, Br, Cl-, Br- etc. Describe what you would observe when aqueous silver nitrate is added to separate aqueous solutions of potassium fluoride and potassium bromide. ...
Is M2 a precipitate or a solid?
M2 brown precipitate or brown solid / brown suspension with NaOH / KOH. (white precipitate / solid / suspension with carbonate) M3 remains colourless or no reaction or no (observed) change or no precipitate or clear solution or it remains clear.
Is calcium chromate soluble in water?
Salts containing the chromate (VI) ion are usually yellow in colour. Calcium chromate (VI) is soluble in water. Strontium chromate (VI) is insoluble in water, but will dissolve in a solution of ethanoic acid.Barium chromate (VI) is insoluble in water and is also insoluble in a solution of ethanoic acid.
Is chlorine an oxidizing agent?
Chlorine is a powerful oxidising agent. (a) Write the simplest ionic equation for the reaction between chlorine and aqueous potassium bromide. State what is observed when this reaction occurs. Write an equation for the reaction between chlorine and cold, dilute, aqueous sodium hydroxide.