d. PCLs (phosphorus pentachloride) and PBrs (phosphorus pentabromide) e. CSH2 (pentane) and CSH12 (isopentane) f. Fa (Fluorine) and Bra (Bromine) 1. Identify the intermolecular forces present in the substances in each pair. 2. Which of the forces predominates in each substance? 3. Tell which between the substances has greater intermolecular forces. 4. Predict which substance in each pair will have higher boiling and melting points.
d. PCLs (phosphorus pentachloride) and PBrs (phosphorus pentabromide) e. CSH2 (pentane) and CSH12 (isopentane) f. Fa (Fluorine) and Bra (Bromine) 1. Identify the intermolecular forces present in the substances in each pair. 2. Which of the forces predominates in each substance? 3. Tell which between the substances has greater intermolecular forces. 4. Predict which substance in each pair will have higher boiling and melting points.
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter8: Molecules And Materials
Section: Chapter Questions
Problem 8.92PAE
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Question
Answer number 4,letter d,e and f subparts
Transcribed Image Text:Activity 1:
Factors affecting the strength of intermolecular forces among molecules
Refer to the pairs of substances to answer the questions that follow.
a. NaCl (sodium chloride) and CHa (methane)
b. CCL4 (carbon tetrachloride) and CHC1, (trichloromethane or chloroform)
c. NH3 (ammonia) and CH3F (methyl fluoride)
d. PCLS (phosphorus pentachloride) and PBrs (phosphorus pentabromide)
e. CSH12 (pentane) and CSH12 (isopentane)
f. F2 (Fluorine) and Br2 (Bromine)
1. Identify the intermolecular forces present in the substances in each pair.
2. Which of the forces predominates in each substance?
3. Tell which between the substances has greater intermolecular forces.
4. Predict which substance in each pair will have higher boiling and
melting points.
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