LiF, an ionic compound, has a dipole moment of µ = 6.33 D in the gas phase. Estimate the Li–F bond length. 14. LiF,...
27) Identify the compound with the largest dipole moment in the gas phase. - A) Cl2 B) NaBr C) BrF D) CCl4E ) HCI 28) Choose the bond below that is most polar. A) N-O B) C-F C) C-P ORD) C- N E ) H-I
22. Identify the compound with the largest dipole moment in the gas phase. a. Cl2 b. NaBr c. HCI d. CCl4 e. BrF
18. Calculate the percent ionic character of the bond in CO which has a dipole moment( u ) = 0.11 D and distance between partial charges (r) = 113 picometer. (1D = 3.336x10-30 C•m ; le = 1.6022x10-19 C) A) 2.0% B) 0.20% C) 20.% D) 1.8% E) 18%
The molecule chlorine monofluoride, CIF, has a dipole moment of 0.88 D and a bond length of 1.63 A. Which atom is expected to have a negative charge? Neither atom has a negative charge OF Both atoms have a negative charge Cl Calculate the effective charges on the Cl and F atoms of the CIF molecule in units of the electronic charge, e -0.11 charge on Cl in ClF: е charge on F in CIF: -0.11 е
UUMIC. d) nitrogen. 14) Alcohol is soluble in water due to a) Covalent bond b) Ionic bond c) Hydrogen bond with water d) None of these uluslom avrololoy 15) NH3 has a much higher boiling point than PH3 because a) NH3 has a larger molecular mass b) NH3 forms hydrogen bond c) NH3 contains ionic whereas PH3 contains covalent bonds d) NH3 has lower dipole moment than PH3 .
- What is the magnitude of the partial positive and partial negative charges in the HBr molecule? (1 D = 3.36 ×10–30 C m; 1 e– = 1.6022 × 10–19 C; bond length HBr = 1.41 angstroms; Dipole Moment HBr = 0.82 D).
14. Which of the following exhibits dipole-dipole attraction between molecules? (EN: F = 4.0; 0 - 3.5; CI - 3.0; C -2.5; H=2.1; B = 2.0) HODHI a) CO2 b) BCI: c) CF4 d) Cl2 e) HCI 15. Which of the following characteristics indicates the presence of strong intermolecular forces in a liquid? a) low heat of vaporization b) low vapor pressure c) low billing point d) all of the above- e) none of the above 16. Acetic acid has...
1. Which compound below has the largest dipole moment? A. CF2Cl2 D. CF4 B. CH2Cl2 E. CH Br2 C. CHF2 2. Which molecule below is polar? A. CF4 D. CS2 B. SiH4 E. CO2 C. CH2Cl2 3. What is the bond order of O2? A. 0 D. 3 B. 1 E. 1.5 C. 2 4. Which statement about a balanced chemical reaction equation is always correct? A. The total number of moles of the products equals the total number of...
1. Which one of the following is most likely to be an ionic compound? A) CaCl2 B) CO2 C) CS2 D) SO2 E) OF2 2. Which one of the following ionic solids would have the largest lattice energy? A) NaCl B) NaF C) CaBr2 D) CsI E) CaCl2 3. Calculate the energy change for the reaction K(g) + I(g) → K+(g) + I – (g) given the following ionization energy (IE) and electron affinity (EA) values. IE K: 419 kJ/mol...
Worksheet Chapter 6.1 Periodic Trends 1. Select the element with the highest ionization energy Name Date a F b. Ne d. Ar e. He 2. Which alkali metal is expected to have the smallest ionization energy? c. CI a. Li b. Na d. Cs e. Fr 3. Which of the following would be expected to have the smallest atomic size? c. Rb a. K c. Rb d. Sr e. Cs 4. Which of the following would be expected to have...