You won’t discover the coun­try of Chem­istry top top a people map, but it ex­ists none­the­less. Life there is ev­ery little as rich and var­ied together in any type of oth­er kingdom – and also some­times even more so. Even “Romeo and also Juli­et” has a hap­py end­ing there. But let’s not gain ahead of our­selves; we’ve obtained a lot come do. We’ll meet the chem­i­cal Mon­tagues and also Ca­pulets, se­lect the best can­di­date for the “re­ac­tion of sodi­um hy­drox­ide and hy­drochlo­ric acid,” collection off into space, vis­it the world’s best restau­rant, and ever for this reason much more.

You are watching: Hydrochloric acid and sodium hydroxide react to form

Let’s first vis­it the chem­i­cal lab­o­ra­to­ry.


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order in the laboratory

In any kind of lab­o­ra­to­ry whereby safe­ty rules room ob­served and also re­spect­ed, al­ka­lis and their ilk are kept strict­ly sep­a­rate from acids and their ilk. These space the Mon­tagues and also Ca­pulets the Chem­istry: both fam­i­lies space ag­gres­sive and also im­pla­ca­bly hos­tile. If they meet with­out a Chemist’s su­per­vi­sion, that bodes only dis­as­ter! Nor carry out they preventive the chemistry – castle yearn come burn or poi­son them. Therefore if the chemistry in­tend to have deal­ings v them, they should pro­tect them­selves as ideal they can: they have no re­course yet to work with lock in a fume hood, and wear a lab coat, apron, gloves, spe­cial boots, and glass­es or a pro­tec­tive shield.

But it simply so hap­pened the the hand­some Sodi­um Hy­drox­ide, from the Al­ka­li fam­i­ly, dropped in love through the en­chant­ing Hy­drochlo­ric acid – indigenous the Acid fam­i­ly!

To un­der­stand the full ex­tent of the tragedy, let’s get bet­ter ac­quaint­ed v them and ex­am­ine the na­ture that sodi­um hy­drox­ide and hy­drochlo­ric acid.

Sodi­um hy­drox­ide

Chem­i­cal for­mu­la NaOH. Among the most wide­spread al­ka­lis, likewise known as caus­tic soda.

Phys­i­cal prop­er­ties


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sodium hydroxide

A sol­id white or slight­ly yel­low­ish pow­der; hy­gro­scop­ic; cor­rodes numerous ma­te­ri­als and or­gan­ic sub­stances in­clud­ing pa­per, skin, and even some met­al;, dis­solves in wa­ter, ethyl and methyl al­co­hols.

Chem­i­cal prop­er­ties

A strong base the re­acts with:

acids;am­pho­ter­ic ox­ides;am­pho­ter­ic hy­drox­ides;salts in so­lu­tion;non-met­als;halo­gens;met­als;es­ters, amides, and alkyl halidespoly­atom­ic al­co­hols.

Field of ap­pli­ca­tion

chem­i­cal in­dus­try;pro­cess­ing in­dus­try;pulp and also pa­per in­dus­try;civ­il de­fense as a neu­tral­iz­ing sub­stance;food in­dus­try – to re­move the skins from fruits and also veg­eta­bles, in the man­u­fac­ture of choco­late and also ca­cao, and to soft­en olives and also give them a dark col­or;cos­met­ics – to re­move ker­a­tinized skin;the house­hold.

Now, stop ac­quaint our­selves through hy­drochlo­ric acid.

Hy­drochlo­ric acid

Chem­i­cal for­mu­la HCl. A strong min­er­al monoba­sic hy­dracid.

Phys­i­cal prop­er­ties


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Hydrochloric acid

Col­or­less, trans­par­ent, a caus­tic liq­uid that fumes in the air. Max­i­mum con­cen­tra­tion at 20 °C is 38%, v a so­lu­tion den­si­ty the 1.19g/cm³. High­ly-con­cen­trat­ed acid caus­es se­vere burns if the en­coun­ters skin, mu­cous mem­branes or eyes, yet is existing in the hu­man stom­ach at a con­cen­tra­tion of around 0.5%.

Chem­i­cal prop­er­ties

A solid acid the re­acts with:

met­als;met­al hy­drox­ides;met­al ox­ides;met­al salts;strong ox­i­diz­ers;am­mo­ni­um.An in­ter­ac­tion with sil­ver ni­trate serves together a qual­i­ta­tive re­ac­tion to test for hy­drochlo­ric acid and its salts.

Field the use:

hy­dromet­al­lur­gy and elec­trotyp­ing;chem­i­cal in­dus­try;food in­dus­try as the food ad­di­tive E507;medicine – to treat short acid­i­ty in the stom­ach.

And so a Chemist de­cid­ed come rec­on­cile the 2 hos­tile fam­i­lies and also mar­ry the lovers, to do ev­ery­thing come make certain that the “re­ac­tion the sodi­um hy­drox­ide with hy­drochlo­ric acid” pro­ceed­ed as planned. A phe­nolph­thalein in­di­ca­tor served as the brides­maid because that the “acid” bride. As shortly as the re­ac­tion through the hy­drox­ide took place, the col­or­less in­di­ca­tor crim­soned with de­light. De­spite the ag­gres­sion of the sodi­um hy­drox­ide and also hy­drochlo­ric acid, the re­ac­tion was a won­der­ful one. And its equa­tion reads as fol­lows:

HCl + NaOH = NaCl + H₂O + Q

Hy­drochlo­ric acid and sodi­um hy­drox­ide in­ter­act, re­sult­ing in salt and also a re­lease of heat.

As we can see, the re­sult that the in­ter­ac­tion of two high­ly ag­gres­sive com­pounds is ta­ble salt and also wa­ter – com­pounds that are ul­ti­mate­ly harm­less, also ben­e­fi­cial, come hu­man be­ings. And also thus the two war­ring fam­i­lies ceased your ag­gres­sions and made peace.

To as­sess the prod­ucts that the re­ac­tion prop­er­ly, let’s gain in a rock­et and ven­ture into space. Fine look in ~ our plan­et from a dis­tance. It’s called the blue plan­et for an excellent rea­son, as 71% of its sur­face is com­prised the seas and also oceans. Al­though, to be fair, we must note that only 1% of this wa­ter is suit­able for con­sump­tion. And also wa­ter is among the prod­ucts that our re­ac­tion.

And now let’s vis­it the finest of restau­rants – friend de­cide which! let’s pro­ceed into the kitchen and also ask the chief what two in­gre­di­ents lock couldn’t execute with­out. And be­lieve us, they won’t say caviar, truf­fles, or parme­san, they’ll to speak salt and also wa­ter, together with­out these in­gre­di­ents you can not pre­pare a sin­gle dish. And also in com­bi­na­tion, ours re­ac­tion prod­ucts deserve to be found at home in soup, brine, or salt wa­ter.And now let’s dive in even deep­er, ex­am­in­ing the re­ac­tion that sodi­um hy­drox­ide and hy­drochlo­ric mountain in the clas­si­fi­ca­tion of chem­i­cal re­ac­tions.

De­ter­min­ing the kind of chem­i­cal re­ac­tion that hy­drochlo­ric acid with sodi­um hy­drox­ide

1. through the num­ber and state that the re­ac­tants and also prod­ucts, the is one ex­change re­ac­tion.In oth­er words, the num­ber of sub­stances en­ter­ing into the re­ac­tion is same to the num­ber the sub­stances re­ceived together a re­sult that the re­ac­tion. An sim­ple ex­change of ions has tak­en place. Come clar­i­fy, let’s create our re­ac­tion equa­tion in ion­ic form:

H⁺ + Cl⁻ + Na⁺ + OH⁻ = Na⁺+Cl⁻ + H₂O

In ac­cor­dance through our sto­ry, the bride and also groom have actually ex­changed their per­son­al prop­er­ty: what’s mine is yours. Right here you can uncover out much more about this dowry.

2. by the type of in­ter­act­ing sub­stances, that is a neu­tral­iza­tion re­ac­tion.

H⁺ + OH⁻ = H₂O

3. by the phys­i­cal state of sub­stances, it is ho­moge­nous. The sub­stances en­ter­ing right into the re­ac­tion space in one iden­ti­cal phys­i­cal state – one iden­ti­cal liq­uid state.

4. by the di­rec­tion that the food of the re­ac­tion, that is ir­re­versible. The re­ac­tion con­tin­ues it rotates the very end, un­til the re­act­ing sub­stances space com­plete­ly con­sumed.

5. through ther­mal ef­fect, it is exother­mic. In oth­er words, the wed­ding cer­e­mo­ny took ar in a warm, friend­ly, and also lov­ing at­mos­phere. The re­ac­tion is ac­com­pa­nied through a ther­mal ef­fect, and the lot of heat re­leased is 57.3 kJ/mol.

6. The re­ac­tion is not an ox­i­da­tion-re­duc­tion re­ac­tion: the ox­i­da­tion claims of the atoms did not readjust over the course of the re­ac­tion.

H⁺Cl⁻ + Na⁺O²⁻H⁺ = Na⁺Cl⁻ + H⁺ O²⁻

And thus, our love sto­ry has actually a hap­py end­ing: lovers from 2 hos­tile fam­i­lies have joined to­geth­er in uni­ty.

See more: What Are The Basic Units Of A Chemical Element Called ? Chemical Element


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The reunion

The ag­gres­sive sodi­um hy­drox­ide and hy­drochlo­ric acid in­ter­act­ed, and also the re­sult yield­ed use­ful prod­ucts.

Isn’t chem­istry a won­der­ful sci­ence? Via a re­ac­tion be­tween one acid and an al­ka­li, we have actually turned the sad­dest the tragedies into a joy­ful ro­mance!