25. Which of the two reactions, A or B is a neutralization reaction? Explain why.
A. HBr + H2O = Br- = H3O+
B. HClO + NaOH = NaClO + H2O
26. A. Look at the reaction again. when this reaction is reversed.
Br- + H3O+ = HBr = H2O
what substance is the acid, what is the base.
B. In practice, the reaction tends not to run in reverse. what does this tell you about the strength of the acid.Explain.
Thank you! These are the only problems i can not get on this paper!
In 26. The reaction is Br- + H3O+ = HBr + H2O. Not Br- + H3O+ = HBr = H2O! Im sorry!
25B is a typical acid/base reaction
26.HBr is an acid; H2O is a base. The fact that it doesn't normally go in reverse means that the HBr is a stronger acid than H2O. That is, H2O is pulling a H^+ from H^+ to make it H3O^+ so H2O (adding a proton is a Bronsted base) so it's a stronger base.
To determine which of the two reactions is a neutralization reaction (Question 25), we need to understand what a neutralization reaction is. A neutralization reaction occurs when an acid reacts with a base, resulting in the formation of a salt and water.
Let's analyze the two reactions:
A. HBr + H2O → Br- + H3O+
B. HClO + NaOH → NaClO + H2O
In reaction A, HBr (hydrobromic acid) reacts with H2O (water) to form Br- (bromide ion) and H3O+ (hydronium ion or protonated water). This reaction does not involve a base. Therefore, reaction A is not a neutralization reaction.
In reaction B, HClO (hypochlorous acid) reacts with NaOH (sodium hydroxide, a strong base) to form NaClO (sodium hypochlorite) and H2O (water). This reaction involves an acid (HClO) and a base (NaOH), resulting in the formation of a salt (NaClO) and water (H2O). Therefore, reaction B is a neutralization reaction.
Moving on to Question 26:
A. When we reverse reaction A (HBr + H2O → Br- + H3O+), it becomes Br- + H3O+ → HBr + H2O. In the reversed reaction, Br- (bromide ion) acts as a base, while H3O+ (hydronium ion) acts as an acid.
B. In practice, the reaction tends not to run in reverse, indicating that HBr (hydrobromic acid) is a stronger acid than Br- (bromide ion). If a reaction favors the forward direction, it means that the products are more stable than the reactants. Hence, HBr is a stronger acid because it tends to donate a proton (H+) to form the more stable Br- ion.
I hope this explanation helps! If you have any more questions, feel free to ask.