15 Facts on HCl + NaH2PO2: What, How to Balance & FAQs

Strontium Hypophosphite is an acid salt. Let us see a few facts on HCl+ NaH₂PO₂.

Strontium hypophosphite has a molar mass of 87.98 g/mol and its density is 800 kg/m3. Three is its hydrogen bond acceptor count. HCl is also called as muriatic acid and has a molecular weight of 36.46. It shows four peaks in the GC-MS spectrum.

Let us discuss the reaction type, the reaction enthalpy, the amount of heat liberated in the reaction, the net ionic equation, and balancing in this article.

What is the product of HCl and NaH₂PO₂?

HCl and NaH₂PO₂ have the following products. Sodium Hydrogen phosphate (NaH₂PO₃), Phosphorus, Hydrogen gas, and sodium Chloride (NaCl)

6 NaH₂PO₂ + 2 HCl → 4 NaH₂PO_{3 +} 2 P + 3 H_{2 +} 2 NaCl

What type of reaction is HCl + NaH₂PO₂?

The reaction between HCl + NaH₂PO₂ is an Exothermic reaction because heat is liberated, and redox reaction.

How to balance HCl + NaH₂PO₂?

This reaction between HCl + NaH₂PO₂ is not balanced because the number of molecules on the left-hand side and right-hand side are not unequal. 

•  NaH₂PO₂ + HCl → NaH₂PO_{3 +} P + H_{2 +} NaCl
• therefore, we have to balance the reaction subsequently
• In the first step, we have to assign the coefficients to every molecule in the reaction. We assign P, Q, R, S, T, and U because we have six molecules. The reaction will look like this,
•  P NaH₂PO₂ + Q HCl → R NaH₂PO_{3 +} S P + T H_{2 +} U NaCl
• The labeled coefficients can be used as alphabets for reactants and products.
• Na= P+ R, O=2P + 3R, H= 2P + Q + 2R + 2T, P = P + S and Cl = Q + U.
• The gaussian elimination method is used for calculating coefficient values.
• P=6, Q=2, R=4, S=2, T= 3 and U = 2
• So, the balanced equivalence of the reaction is,
• 6 NaH₂PO₂ + 2 HCl → 4 NaH₂PO_{3 +} 2 P + 3 H_{2 +} 2 NaCl

HCl + NaH₂PO₂ titration?

In the reaction between HCl and NaH₂PO₂ titration does not occur, as vigorous acids like HCl cannot be used for titration and aqueous NaH₂PO₂ solutions may explode on evaporation.

HCl + NaH₂PO₂ net ionic equation?

HCl and NaH₂PO₂ have the following Ionic equation

• Na¹⁺ + 2H⁺ + PO₂^1- → 2 Na¹⁺ + 4 H^{+ +} PO₃^3- + P + Cl^–
• We should follow the steps to arrive at the net ionic equation.
• The balanced chemical equation represents the states of products and reactants. 
•  NaH₂PO₂ (as) + HCl (as) → NaH₂PO₃ (as) ₊ P (g) + H_{2 (}g) + NaCl (as)
• Acids, bases, and salts get dissociated into their respective ions, whereas pure substances cannot dissociate into ions. So, the final equation of dissociation is 
• Na¹⁺ + 2H⁺ + PO₂^1- → 2 Na¹⁺ + 4 H⁺ + PO₃^3- + P + Cl^–

HCl + NaH₂PO₂ conjugate pairs?

HCl + NaH₂PO₂ has the following conjugate pairs,

• NaH₂PO₂ does not have any conjugate pairs  
• The conjugate pair of HCl is Cl^–.

HCl and NaH₂PO₂ intermolecular forces?

The reaction between HCl and NaH₂PO₂ has the following intermolecular forces,

• NaH₂PO₂ has an Ionic force and Hydrogen bonding.
• HCl has Dipole-Dipole interaction and dispersion forces.

HCl + NaH₂PO₂ reaction enthalpy?

HCl + NaH₂PO₂ reaction, their enthalpy of has not been established yet due to stoichiometry.

Is HCl + NaH₂PO₂ a buffer solution?

HCl + NaH₂PO₂ as a buffer is not possible as strong acid (HCl) is used.

Is HCl + NaH₂PO₂ a complete reaction?

HCl + NaH₂PO₂ is a complete reaction with Sodium Hydrogen phosphate (NaH₂PO₃), Phosphorus, Hydrogen gas, and sodium Chloride (NaCl) as their products.

6 NaH₂PO₂ + 2 HCl → 4 NaH₂PO_{3 +} 2 P + 3 H_{2 +} 2 NaCl

Is HCl + NaH₂PO₂ an exothermic or endothermic reaction?

HCl + NaH₂PO₂ is an Exothermic reaction because heat is liberated.

Is HCl + NaH₂PO₂ a redox reaction?

HCl + NaH₂PO₂ is a redox reaction as there is a change in the oxidation number of P. P is reduced from +5 to +3 that is 2 electrons are gained and H is oxidized as its oxidation number is changed from -1 to +1.

Is HCl + NaH₂PO₂ a precipitation reaction?

HCl + NaH₂PO₂ is a precipitation reaction as Sodium Chloride (NaCl) and Sodium Hydrogen phosphate (NaH₂PO₃) are obtained as a residue.

Is HCl + NaH₂PO₂ reversible or irreversible reaction?

HCl + NaH₂PO₂ is an irreversible reaction because gaseous products are liberated and they cannot be converted back to reactants.

Is HCl + NaH₂PO₂ displacement reaction?

HCl + NaH₂PO₂ is not a displacement reaction because the products are not displaced to bring back the reactants.

Conclusion