15 حقائق عن حمض الهيدروكلوريك + كربونات الكالسيوم 3: مع تفاعل عدة عناصر


كربونات الكالسيوم (CaCO3) is basic, and it easily reacts with the strong acid, HCl. Let us explain the different relevant facts of the reaction in detail.

The reaction between HCl and CaCO3 is an example of an acid-base reaction or neutralization reaction. No more heat or external pressure is required for this reaction. This is an exothermic reaction which indicates that the products are more stable, and they possess less energy than the reactants.

Let us talk about the reaction type, products, intermolecular forces, enthalpy, balancing method, and conjugate pairs of this reaction.

What is the product of HCl and CaCO3?

The metal carbonate, CaCO3 reacts with the strong acid, HCl, and produces calcium chloride (CaCl2) وثاني أكسيد الكربون (CO2), and water (H2O). Carbon dioxide is always released through the solution when a metal carbonate reacts with the acid.

كربونات الكالسيوم3 (aq) + 2HCl (aq) = CaCl2 (aq) + CO2 (ز) + ح2يا (ل)

What type of reaction is HCl + CaCO3?

The reaction between HCl + CaCO3 is an example of an acid-base reaction or تفاعل التعادل. In this reaction, acid, HCl is completely neutralized by the basic substance, CaCO3 to form salt and water.

How to balance HCl + CaCO3?

The following steps should be followed to balance a chemical reaction-

  • Write the unbalanced chemical equation first with right arrow sign. كربونات الكالسيوم3 (aq) + HCl (aq) → CaCl2 (aq) + CO2 (ز) + ح2يا (ل)
  • Count the number of moles present for each element in the reactant and product side.
عناصرNo of moles in reactant sideNo of moles in جانب المنتج
Ca11
C11
O33
H12
Cl12
Number of moles of the elements in reactant and product side
  • To balance both sides (reactant and product) we have to multiply 2 with HCl to balance the number of moles of hydrogen and chlorine.
  • Therefore, the balanced equation will be – كربونات الكالسيوم3 (aq) + 2HCl (aq) = CaCl2 (aq) + CO2 (ز) + ح2يا (ل).

HCL + CaCO3 المعايرة بالتحليل الكيماوي

Back titration is required in this case because calcium carbonate is not soluble in water.

جهاز

250 ml beaker, 250 ml volumetric flask, conical flask, burette, pipette (25 ml).

مؤشر

الفينول is known as an acid-base indicator.

إجراء

  • Solid CaCO3 is taken in a beaker and HCl is added to it. After mixing it properly, the whole mixture is transferred to a 250 ml volumetric flask and made up to the mark with distilled water.
  • Pipette out 25 ml of the solution from the volumetric flask and put it in a conical flask. Phenolphthalein is added to the conical flask as an acid-base indicator.
  • Titrate the solution with 0.1 M sodium hydroxide (NaOH) taken in a burette until pale pink color appears.
  • Repeat the titration at least three times for accuracy and take the average of the titer values.
  • Using the formula “V1S1 = الخامس2S2”, the purity within CaCO3 is determined accurately.

HCl + CaCO3 صافي المعادلة الأيونية

The net ionic equation of the chemical reaction is-

كربونات الكالسيوم3 (ق) + 2 ح+ (عبد القدير) + 2Cl- (aq) = Ca2+ (عبد القدير) + 2Cl- (aq) + CO2 (ز) + ح2يا (ل).

HCL + CaCO3 أزواج مترافقة

The conjugate pairs (pair of compounds differ by one proton) equation of HCl + CaCO3 يكون-

HCl + CaCO3 = Cl- + HCaCO3+.

HCl and CaCO3 القوى بين الجزيئات

يرأس القوى بين الجزيئات act on HCl and CaCO3 are-

  • The electrostatic force of attraction is on CaCO3 because it is an ionic compound. The Ca2+ وشارك32- ions are attached through this strong attraction force.
  • Being a covalent compound, dipole-dipole interaction and قوات تشتت لندن are working on HCl molecules.

HCl + CaCO3 المحتوى الحراري للتفاعل

يرأس الطاقة الداخلية الكامنة change of the reaction is -15.2 KJ/mol and it is obtained from the mathematical calculation مكتوب أدناه.

  • The enthalpy of the reactant side is -1206.9 KJ/mol (for CaCO3) and 167.16 KJ/mol (for HCl). The enthalpy values for the product side are -877.1 (CaCl2), -285.83 (H2O), and -393.51 (CO2) KJ/mol.
  • The change of enthalpy = {Enthalpy (products) – Enthalpy (reactants)} = [-877.1 – 285.83 – 393.51 – {-1206.9 + 2×(-167.16)}] KJ/mol. = -15.22 KJ/mol.

Is HCl + CaCO3 حل عازلة؟

HCl + CaCO3 ليس محلول منظم because it is not a mixture of either a weak acid and its conjugate base or a weak base and its conjugate acid. In this mixture, HCl is a strong acid and CaCO3 is a metal carbonate that acts as a base.

Is HCl + CaCO3 رد فعل كامل؟

HCl + CaCO3 cannot be a complete reaction because it is only the reactants written here. If the products are also written with reactants then it will be considered as a complete reaction.

Is HCl + CaCO3 رد فعل طارد للحرارة أو ماص للحرارة؟

HCl + CaCO3 هو مثال على تفاعل طارد للحرارة because the change of enthalpy is negative in this reaction which is -15.22 KJ/mol.

Is HCl + CaCO3 رد فعل الأكسدة والاختزال؟

HCl +CaCO3 is not a redox reaction because in this reaction no electron transfer is taking place. It is a neutralization reaction occurring between an acid and a base.

Is HCl + CaCO3 رد فعل هطول الأمطار؟

HCl +CaCO3 is not a precipitation reaction because the products are not obtained as a precipitate. Calcium chloride (CaCl2) is completely soluble in water and CO2 is coming out as gas from the reaction medium.

Is HCl + CaCO3 رد فعل قابل للعكس أو لا رجوع فيه؟

HCl +CaCO3 ليس تفاعل عكوس because a gaseous product (CO2) is obtained on the product side and gas molecules possess a large amount of entropy. Due to this reason, the product side is more stable than the reactant side, and the reaction equilibrium shifts toward the forward direction.

Is HCl + CaCO3 رد فعل الإزاحة؟

HCl +CaCO3 is a double-displacement reaction because in this reaction, bonds in two of the reacting chemicals are broken and these two chemicals react by exchanging ions.

hcl + caco3
رد فعل مزدوج النزوح

How to balance CaCO3 + NaOH + HCl → NaHCO3 + كاكل2 + H2O?

  • First, write the unbalanced chemical equation. CaCO3 + NaOH + HCl → NaHCO3 + كاكل2 + H2O.
  • The number of moles of each element in the reactant and the product side should be acknowledged.
عناصرNo of moles in reactant sideNo of moles in جانب المنتج
Ca11
C11
O44
H23
Cl12
Na11
Number of moles elements in reactant and product side
  • To balance both sides we have to multiply 2 before HCl to balance the number of moles of hydrogen and chlorine. Rest of the elements present in same mole numbers in both the reactant and product side.
  • Therefore, the balanced equation will be – كربونات الكالسيوم3 (aq) + NaOH (aq) + 2HCl (aq) = CaCl2 (aq) + NaHCO3 (أ ك) + ح2يا (ل).

في الختام

We can calculate the percentage of purity through this reaction because the impurities within CaCO3 cannot react with HCl. We can also produce carbon dioxide gas through this reaction.

أديتي روي

مرحبًا ، أنا Aditi Ray ، شركة كيمياء صغيرة ومتوسطة الحجم على هذه المنصة. لقد أكملت تخرجي في الكيمياء من جامعة كلكتا وبعد التخرج من جامعة تكنو إنديا مع تخصص في الكيمياء غير العضوية. أنا سعيد جدًا لكوني جزءًا من عائلة Lambdageeks وأود أن أشرح الموضوع بطريقة مبسطة. دعنا نتواصل من خلال LinkedIn-https: //www.linkedin.com/in/aditi-ray-a7a946202

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