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Q: What is the action of litmus on dry ammonia and solution of ammonia gas?
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Why do Solution of ammonia turns red litmus paper blue while dry ammonia gas has no action on litmus paper?

Ammonia solution consists of ammonium hydroxide and water, the ammonium hydroxide is basic (due to the hydroxyl functional group). Dry ammonia doesn't have this functional group.


Dry ammonia ga s has no action on litmus paper but a solution of ammonia in water turns red litmus to blue. why?

because when ammonia gas react with water it forms ammonia hydroxide which is a base so that it turns red litmus paper into blue


Dry ammonia has no at litmus paper but your solution of ammonia in water turns blue why?

nothing


Why does dry ammonia has no reaction on litmus paper while ammonia in water turns red litmus blue?

because dry ammonia does not contain water and it doesn't present H+ ions


What is the effect of dry red litmus paper on household ammonia?

litmus color changes into blue.


Why is dry ammonia gas neutral to litmus?

Litmus paper detects alkaline conditions (presence of OH- ion). When dry, ammonia has no hydroxide ions. It needs to be mixed with water, where, in equilibrium, NH4+ and OH- ions are formed. If you wet the litmus paper, the dry NH3 gas will register as basic.


Is it ammonia acidic?

no if ammonia is dry state den it is neither acidic nor basic but actually it is basic because it turns red litmus blue


How do you observe the changing colour of litmus paper?

Dip the litmus paper into the solution you are testing. Hold it up in the air, holding the dry bit. Look at the bit you dipped. If the solution was an acid, red litmus will stay red, blue litmus will turn red. If the solution was an alkali, red litmus will turn blue, blue litmus will stay red. If the solution was neutral, red litmus will stay red, blue litmus will stay blue.


Why doesn't dry litmus paper change color when added to dry ammonia gas?

Because to exchange protons (from Litmus to ammonia) some water molecules are needed for transfer: LitH+(red) + H2O + NH3 --> [ Lit + H3O+ + NH3 ] --> Lit(blue) + H2O + NH4+(aq)


Why does dry HCl gas does not change the colour of the dry litmus paper?

Hydrogen chloride gas is not an acid, is not in solution and does not donate protons. So, no litmus paper color change.


Why is dry ammonia neutral to litmus?

Unlike hydrated ammonia, there is nowhere for the extra proton to go and form hydronium, so there can be no change to a pH because there simply isn't one. Thus, the ammonia appears neutral.


What are the contents of litmus solution and how to make it?

Dip a piece of coffee filter in red cabbage juice and let it dry. Untested, but should work.