- #1
RPN
- 15
- 0
Okay I did my work but if someone would be so kind as to look at it and see if I am understanding.
Questions
1. Explain why you would expect a BeF2 molecule to be linear but an SF2 molecule to be angular?
BeF2 forms an ionic bond with 2 single bonds. Since Be is in group IIA it forms two sp hybrid orbitals. The farthest away the pairs can be is 180 o angle, making it linear. SF2 forms two covalent bonds with two F atoms. Having four pairs of electrons around the S atom the farthest away they can be is in an angular shape.
2a) How would you designate the hybrid orbitals formed by "mixing" one d, one s and two p orbitals?
a) When mixing one d orbital, one s orbital and 2 p orbitals you get dsp2.
b) How many of the hybrid orbitals would be formed by the mixing?
b) The number you put in is the number you get as a result. So in this case we put in 4 orbitals we then get 4 hybrid orbitals.
3. Explain why C20H40 is a solid at 25degcel, while C4H8 is a gas at 25degcel?
39. C20H40 is a solid at 25o C because has more electrons. With more electrons you get more forces that can hold the lattice pattern together. C4H8 is a gas at 25o C because the bonds are weak and that gives this compound a low boiling temp.
4.Arrange the following atoms or ions in order of increasing radius:
Cl, S2-, K, K+, O
if an explanation for the position of S2- in relation to the atom or ion in front and behind it.
OK I have:31.
O, S2-, K+, Cl ,K
------------------>
increasing radius
S2- is smaller than K+ in this case because it has a configuration the same as Ar, a noble gas. Moving horizontally in the periodic table the radius decreases in size.
S2- is bigger than Cl because?
If someone would look over my answers and see if i am correct or even close.
Thank you
Questions
1. Explain why you would expect a BeF2 molecule to be linear but an SF2 molecule to be angular?
BeF2 forms an ionic bond with 2 single bonds. Since Be is in group IIA it forms two sp hybrid orbitals. The farthest away the pairs can be is 180 o angle, making it linear. SF2 forms two covalent bonds with two F atoms. Having four pairs of electrons around the S atom the farthest away they can be is in an angular shape.
2a) How would you designate the hybrid orbitals formed by "mixing" one d, one s and two p orbitals?
a) When mixing one d orbital, one s orbital and 2 p orbitals you get dsp2.
b) How many of the hybrid orbitals would be formed by the mixing?
b) The number you put in is the number you get as a result. So in this case we put in 4 orbitals we then get 4 hybrid orbitals.
3. Explain why C20H40 is a solid at 25degcel, while C4H8 is a gas at 25degcel?
39. C20H40 is a solid at 25o C because has more electrons. With more electrons you get more forces that can hold the lattice pattern together. C4H8 is a gas at 25o C because the bonds are weak and that gives this compound a low boiling temp.
4.Arrange the following atoms or ions in order of increasing radius:
Cl, S2-, K, K+, O
if an explanation for the position of S2- in relation to the atom or ion in front and behind it.
OK I have:31.
O, S2-, K+, Cl ,K
------------------>
increasing radius
S2- is smaller than K+ in this case because it has a configuration the same as Ar, a noble gas. Moving horizontally in the periodic table the radius decreases in size.
S2- is bigger than Cl because?
If someone would look over my answers and see if i am correct or even close.
Thank you