Questions

How do you tell if an acid is concentrated or dilute?

How do you tell if an acid is concentrated or dilute?

A concentrated acid is one in which many acid molecules are dissolved in a set volume of solution, while a dilute acid will have very few molecules per unit volume. The same applies for bases as acids. By adding water to a concentrated acid or base, the solution is diluted.

What reagent can be used to distinguish hydrochloric acid from sulphuric acid?

Explanation: when a glass rod dipped in Ammonia solution bring near the test tube containing dilute sulphuric acid no such dense films are given but when again a glass rod is dipped in Ammonia solution bring other test tube of hydrochloric acid then it will give a dense white fumes .

How will you distinguish between a solution of concentrated sulphuric acid and concentrated nitric acid by a single chemical test?

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Answer: add a few drops of barium chloride (BaCl) to both of them. Barium will react with the sulfuric acid to make the solid precipitate, BaSO. There will be no reaction with the nitric acid.

How do you test for dilute sulfuric acid?

Test for sulfuric acid (and soluble sulfates) Firstly, add dilute HNO3. This is to prevent precipitation of other insoluble barium compounds such as BaCO3 or BaSO3. Secondly, add Ba(NO3)2 (aq). If sulfuric acid or a sulfate is present a white precipitate will be immediately observed.

What is the concentration of dilute Sulphuric acid?

Forms of sulfuric acid Some common concentrations are: 10\%, dilute sulfuric acid for laboratory use (pH 1) 33.5\%, battery acid (used in lead-acid batteries) (pH 0.5) 62.18\%, chamber or fertilizer acid (pH about 0.4)

How will you distinguish between dilute sulphuric acid and concentrated sulphuric acid?

1. Dilute sulphuric acid treated with zinc gives Hydrogen gas which bums with pop sound. Concentrated H2SO4 gives SO2 gas with zinc and the gas turns Acidified potassium dichromate paper green.

How will you distinguish between dilute sulphuric acid and dilute hydrochloric acid?

With barium chloride solution sulphuric acid will give white precipitate while hydrochloric acid and nitric acid will not give any precipitate.

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How do you identify H2SO4?

  1. Sulfuric acid is a colorless oily liquid. It is soluble in water with release of heat.
  2. Sulfuric acid is a sulfur oxoacid that consists of two oxo and two hydroxy groups joined covalently to a central sulfur atom. It has a role as a catalyst.
  3. Sulfuric acid, spent appears as a black oily liquid.

How do you identify sulphuric acid?

Sulfuric acid is a colorless oily liquid. It is soluble in water with release of heat. It is corrosive to metals and tissue. It will char wood and most other organic matter on contact, but is unlikely to cause a fire.

What is dilute acid test?

Carbonate ions, CO 3 2- are detected using a dilute acid . Bubbles are given off when an acid, usually dilute hydrochloric acid, is added to the test compound . The bubbles are caused by carbon dioxide. Limewater is used to confirm that the gas is carbon dioxide.

What is difference between concentrated and dilute solution?

A concentrated solution is one that has a relatively large amount of dissolved solute. A dilute solution is one that has a relatively small amount of dissolved solute.

Is sulfuric acid a concentrated or a dilute acid?

Laboratory type sulfuric acid (about 98\% by weight) is a concentrated (and strong) acid. A dilute acid is that in which the concentration of the water mixed in the acid is higher than the concentration of the acid itself. For instance, 5\% sulfuric acid is a dilute acid.

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What happens when sulphuric acid is added to zinc solution?

1. Dilute sulphuric acid treated with zinc gives Hydrogen gas which bums with pop sound. Concentrated H 2 SO 4 gives SO 2 gas with zinc and the gas turns Acidified potassium dichromate paper green. 2.Barium chloride solution gives white ppt. with dilute H 2 SO 4, This white ppt. is insoluble in all acids.

What is the meaning of dilute acid?

2 Answers. A dilute acid is that in which the concentration of the water mixed in the acid is higher than the concentration of the acid itself. For instance, 5\% sulfuric acid is a dilute acid. A dilute acid, unlike a concentrated acid, will ionize to a greater degree in their solution (higher percent dissociation with decreasing concentration).

What is the difference between concentrated acid and pure acid?

G_Ozdilek · Truong-Son N. Aug 15, 2016. A concentrated acid is an acid which is in either pure form or has a high concentration. Laboratory type sulfuric acid (about 98\% by weight) is a concentrated (and strong) acid.