Question

TRUE/ FALSE Assuming that the effect of bond energy is more important than the effect of...

TRUE/ FALSE

Assuming that the effect of bond energy is more important than the effect of electronegativity, the substance HBr is expected to be a stronger acid than the substance HF.

Homework Answers

Answer #1

The statement is true.

F is more electronegative than Br, and if the only electronegativity factor is considered, HF would be stronger than HBr. But actually, HF is a weak acid. Hence, there is a competing factor.

The size of the halogens changes more dramatically than their electronegativities as you go up and down the group.

The F- ion is very small compared to the Br- ion, so negative charge is concentrated on this small F- spherical particle.

The H and F atoms are comparable size. The HF bond length is very small and hence the bond energy is high. So that HF is a weak acid.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
why is acid strength stronger when electronegativity higher BUT is stronger when bond energy weaker? what...
why is acid strength stronger when electronegativity higher BUT is stronger when bond energy weaker? what is relationships between electronegativity and bond energy?
Which of the following statements are true? (Choose "True" or "False" for each statement.) True/False  Electronegativity is...
Which of the following statements are true? (Choose "True" or "False" for each statement.) True/False  Electronegativity is a measure of the relative tendency of an atom to attract the electrons of a chemical bond in which it participates. True/False  Electronegativity is the tendency of an atom to lessen its electron density when bonded to another atom. True/False  Non-metals generally have more negative electron affinities than metals. True/False  Electronegativity is the amount of energy required to add an electron to a neutral atom. True/False  Electron affinity...
QUESTION 3: A carboxylic acid salt is more soluble in water than the carboxylic acid. a.)...
QUESTION 3: A carboxylic acid salt is more soluble in water than the carboxylic acid. a.) True b.) False QUESTION 5: A carboxylic acid ester is more soluble in water than the carboxylic acid. a.) True b.) False QUESTION 9: A lactone is a cyclic ketone. a.) True b.) False QUESTION 10: The stronger an acid, the larger its pKa value. a.) True b.) False
Decide if the following statements regarding Intermolecular forces are True or False. HF will have a...
Decide if the following statements regarding Intermolecular forces are True or False. HF will have a higher vapor pressure at 25oC than KCl. Cl2 will have a higher melting point than HBr. As the polarity of a covalent compound increases, the solubility of the compound in CCl4 decreases. H2S will have a higher boiling point than F2. HF will have a lower vapor pressure at -50oC than HBr.
how does electronegativity relate to bond strength?? HF is less acidic than HCL but F is...
how does electronegativity relate to bond strength?? HF is less acidic than HCL but F is the highest electronegetive atom. if electronegetivity and acidity increases from left to right why is this true??
True or False: The effect of the hydrogenation of oils is to add more double bonds.
True or False: The effect of the hydrogenation of oils is to add more double bonds.
True or False? e. Benzoic acid is more reactive than benzene toward electrophilic aromatic substitution f....
True or False? e. Benzoic acid is more reactive than benzene toward electrophilic aromatic substitution f. para-chlorobenzoic acid is more acidic than para-methoxybenzoic acid g. A vinyl group is a meta director h. para-nitroaniline is more basic than para-chloroaniline
True or False? In-sample r-squared is generally a more important measure of a regression model’s predictive...
True or False? In-sample r-squared is generally a more important measure of a regression model’s predictive power than out of sample r-squared True or False? If the p-value for an IV is larger than acceptable error (usually .05), it suggests that there is no significant relationship between that IV and the DV. True or False? If the p-value for an IV is larger than acceptable error (usually .05), it is irrelevant what the sign of the beta for that IV...
HBr is a stronger acid than HCl. Which of the following explanations best presents the causality...
HBr is a stronger acid than HCl. Which of the following explanations best presents the causality of this acidity order? a. The entropy loss of water is the smallest when the conjugate base ion is larger. b. The conjugate base ion is more stable when it is larger. c. The energetic stability of the conjugate base ion is greater when the ion is larger. d. Water likes to bond with the conjugate base of HBr more than HCl.
HBr is a stronger acid than HCl. Which of the following explanations best presents the causality...
HBr is a stronger acid than HCl. Which of the following explanations best presents the causality of this acidity order? a. The entropy loss of water is the smallest when the conjugate base ion is larger. b. The conjugate base ion is more stable when it is larger. c. The energetic stability of the conjugate base ion is greater when the ion is larger. d. Water likes to bond with the conjugate base of HBr more than HCl.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT