When HNO₃ reacts with NaOH, which product is formed?

Question

When HNO₃ reacts with NaOH, which product is formed??  
A. OH⁻  
B. H₃O⁺  
C. NaH  
D. NaNO₃

Accepted Answer

Correct Answer: (D)NaNO₃. 
Rationale: The product formed is NaNO₃, sodium nitrate.This is a classic acid-base neutralization reaction between a strong acid (nitric acid, HNO₃) and a strong base (sodium hydroxide, NaOH). Such reactions typically produce a salt and water.A) OH⁻Hydroxide ion is a reactant, coming from the dissociation of NaOH. It is consumed during the neutralization reaction when it combines with H⁺ to form water. It is not a product of the reaction.B) H₃O⁺Hydronium ion represents the hydrated proton (H⁺) in aqueous acidic solutions. In this reaction, the H⁺ from HNO₃ and the OH⁻ from NaOH combine to form neutral H₂O molecules. While H₃O⁺ exists in the acidic solution before the reaction, it is consumed and is not a final product of the completed neutralization. The net ionic equation is H⁺(aq) + OH⁻(aq) → H₂O(l).C) NaHSodium hydride is an ionic compound consisting of Na⁺ and the hydride ion H⁻. It is formed under very different conditions, typically by direct reaction of sodium metal with hydrogen gas at high temperatures. It is not a product of an aqueous acid-base reaction. The hydrogen from the acid ends up in water, not as a hydride ion.D) NaNO₃The complete molecular equation is: HNO₃(aq) + NaOH(aq) → H₂O(l) + NaNO₃(aq). The sodium ion (Na⁺) from the base and the nitrate ion (NO₃⁻) from the acid combine to form the ionic salt sodium nitrate, which remains dissolved in the aqueous solution. This is the salt product of the neutralization.Conclusion:Acid-base neutralization reactions between an acid and a metal hydroxide produce a salt (composed of the cation from the base and the anion from the acid) and water. For nitric acid and sodium hydroxide, the salt product is sodium nitrate (NaNO₃).

When HNO₃ reacts with NaOH, which product is formed?

A
OH⁻

B
H₃O⁺

C
NaH

D
NaNO₃

The product formed is NaNO₃, sodium nitrate.

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Related Questions

When HNO₃ reacts with NaOH, which product is formed?

A OH⁻ B H₃O⁺ C NaH D NaNO₃

The product formed is NaNO₃, sodium nitrate.

Topic Flashcards

Mini Quiz

Related Questions

A
OH⁻

B
H₃O⁺

C
NaH

D
NaNO₃