Ammonia andchlorine gases react with each other in two waysaccording to the available amount of reactants (ammonia and chlorine) in the reaction mixture. If there isexcess ammonia gas, given products are different from given products when there is excess chlorine gas. Both chlorineand ammonia in gaseous state in this reaction.Inorganic chemistry, ammonia & chlorine gas reaction

Reaction Types of Ammonia và Chlorine

There are possibilities for two reactions according to the amount of ammoni & chlorine gases. So different products will be given according to the reactions & we will discuss in detail in this tutorial.Excess ammonia with less chlorine reactionLess ammonia with excess chlorine reaction

Excess ammonia with less chlorine reaction

This reaction occurs in two steps khổng lồ give final products. A redox reaction (oxidation redox reaction) is occurred.First, ammonia reacts with chlorine & producenitrogen gas
andhydrogen chloride vapor.Produced hydrogen chloride vapor can behave as an acidic compound (can release H+ ionsin the water).Then, hydrogen chloride reacts with basic ammonia gas lớn produceammonium chloride which is asolid white smog. To happen this second step reaction, ammonia is required. That"s why required amount of ammonia is high.

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2NH3 + 3Cl2 = N2 + 6HClNH3 + HCl = NH4Cl

Balanced equation

8NH3 + 3Cl2 = N2 + 6NH4Cl
You can see there are three chemical equations. First two of them are steps of the complete reaction andlast reaction is the complete reaction. Complete reaction is made by adding two equations with multiplyingsecond equation from 6 times. In addition of two reactions, HCl is cancelled out from complete reaction. SoHCl is an intermediate product.

Due lớn redox reaction, oxidation numbers of reactants are important. In this reaction ammonia is oxidizedto nitrogen from -3 khổng lồ 0 và chlorine is reduced to lớn chloride ion from 0 to -1.Ammonia behave as a reducing agent while chlorine is a oxidizing agent.

How khổng lồ balance NH3 + Cl2 = N2 + NH4Cl

We are going to discuss how lớn balance the chemical equation when excess ammonia reacts with chlorine.First, find the oxidation numbers of each element in the right & left side of the reaction. You will find that,oxidation numbers of nitrogen and chlorine are changed. (discussed in earlier)Equalize the oxidizing and reducing atoms before redox balance is done. There are two nitrogen atoms in right side (not countnitrogen in NH4Cl because nitrogen in NH4Cl oxidation number is -3). So maketwo ammonia molecules to equalize number of nitrogen atoms.To balance chlorine atoms, make two NH4Cl because there are two chlorine atoms initially in the left side.Now, take the oxidation numbers difference in oxidation reaction & reduction reaction. Then exchange with each other.For that, differences are 6 và 2 for nitrogen & respectively. 6:2 is taken as 3:1. After exchanging, equation should belike this.2NH3 + 3Cl2 = N2 + 3*2NH4ClNitrogen atoms are not equal now. Eight nitrogen atoms are in right side and only two in left. So make four nitrogenmolecules to lớn balance number of nitrogen atoms.Number of hydrogen atoms is also balance now.

Less ammonia with excess chlorine reaction

Ammonia reacts with chlorine và produce nitrogen trichloride (NCl3) and hydrogen chloridevapor. This reaction is also a redox reaction.
Balanced equation2NH3 + 3Cl2 = 2NCl3 + 6HCl
Nitrogen trichloride is a yellow oily liquid with pungent odor.

In this reaction, chlorine is reduced và oxidized. So this is an disproportionation reaction.Oxidation number of chlorine (o) is changed khổng lồ -1 và +1. No change of oxidation number of nitrogen when products are given.

How to balance NH3 + Cl2 = NCl3 + HCl reaction

We are going lớn discuss how to lớn balance the chemical equation when ammonia reacts with excess chlorine gas.Find oxidation numbers of nitrogen, hydrogen và chlorine atoms. You see, onlyoxidation number of chlorine atomsare changed while nitrogen"s and hydrogen"s are kept same in left side & right side. Chlorine"s oxidation number is changed from 0 khổng lồ -1 and +1.Then, equalize number of atoms which are oxidized & reduced. Here, only chlorine atoms should be considered. In right side, thereare four chlorine atoms và two chlorine atoms in left side. Add one chlorine molecule khổng lồ left side. Now number of chlorine atoms aresame in both side.Now determine the oxidation number difference & reduction number difference. Oxidation number difference in oxidation is 3.Reduction numbers difference in reduction is 1. Then exchange the differences.Then you will get the balanced equation.This type of redox reactionbalancing example is reaction of chlorine gas with sodium hydroxide.

Safety Precautions

Here we look toxicity and injuries can be occurred due to using chemicals in this reaction. Study MSDS (material safetydata sheets) before you conduct the experiment.


Flammable gasToxic if inhaled - produces respiratory reflexes such as coughing and arrest of respiration.Causes severe skin burns và eye damageToxic khổng lồ aquatic life

Chlorine gas

May cause to intensity fireCan be oxidizedCauses severe skin burns & eye damageIf inhaled, can be fatalToxic to lớn aquatic like


When 6 moles of ammonia reacts with 3 moles of chlorine, which products are given?

First, look two reactions can be occurred between ammonia và chlorine. Then kiểm tra the amount of moles of reactants & decide what is the excessreactant.We see there is excess ammonia in the reactants. If there is excess ammonia, nitrogen và ammonium chloride should be given as products. In thatreaction, ratio between ammonia và chlorine is 8:3 . But in the given reactants, ratio of ammonia và chlorine is 6:3 .

Now we should see two steps of reaction between excess ammonia and chlorine.

first step2NH3 + 3Cl2 = N2 + 6HClFrom the stoichiometry, two ammonia moles and three chlorine moles are spent. So all chlorine are finished and four ammonia moles areremaining. As products one nitrogen mol & six HCl moles are given.

Now remaining four moles of ammonia can reacts with produced HCl.second stepNH3 + HCl = NH4ClFour HCl moles will reacts with remaining ammonia 4 moles & produce four ammonium chloride moles. Two HCl moles will remain as unreactedHCl.

If you want vị cl2 + nh3 excess reaction, exactly, how would you mix reactants?

Stoicheometry says us, what is the exact ratio reactants are reacted. In Cl2 và excess NH3 reaction, they react with 3:8 ratio. But, to complete a reaction, there are requirements. There should be atleast one excess reagent. So if there are three Cl2 moles, there should be more than eight moles of Cl2.

What are the products when excess iodine và ammonia are reacted?

Nitrogen triiodide (NI3) is given as the product.

what are observation when ammonia reacts with Chlorine gas

If amount of chlorine is high, you can see a brown colour oil (NCl3) is formed. Otherwise, ammonia is high, a white colour solid fog (NH4+Cl) is formed.

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What will happen when NCl3 is hydrolyzed?

NCl3 is hydrolyzed lớn NH3 & HOCl. With intermediate formation of hydrogen bonds species.NCl3 + 3H2O → NH3 + 3HOCl

Is NH3 & HCl reaction redox reaction?

NH3 & HCl reaction is not a redox reaction because oxidation numbers of atom of reactants are not changed when they give products.

ammonia gas và hydrogen chloride gas equation

NH3 + HCl → NH4Cl



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