8. Consider the following structure, where the C-C and C=C bond lengths are drawn roughly to scale of the actual molecule. In other words, two different bond lengths were measured/observed for this compound (i.e. the C=C bond length is different than the C-C length).
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Are the bond lengths data consistent with a resonance model? Yes or no? Please explain thank you.
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- A student draws the picture of ammonia (NH3) in the box below, left, and predicts it will be a flatmolecule with HNH bond angles of exactly 120°. Unfortunately, the student left something out. a. What did the student omit from his drawing? b. What is the actual HNH bond angle of ammonia (based on the draw g above, right)? c. Explain why water, ammonia, and methane (shown below) all have about the same bondangles (close to 109.5°) even though they have different numbers of bonds.Determine a molecular formula, for example, CH4, from the line structure below. (Specify elements in the following order: C, H, others (in alphabetical order). Example: C4H7CIOS) HO. Molecular formulaC. For the following hypothetical molecules/ ions below: (The number of valence electrons for each element is given in parenthesis) 1. CD. (C=3, D=7) 2. GH, (G=7, H=7} 3. JK. (1=6, K=7) 4. LM2 (L=8, M=7) 5. CH:CHCHOCH CH Boon, CHs CHy-CH: Cc-c-CH: CH) 6. Give the following information: (a) Lewis structure (b) Number of bonding pairs of electrons (c) Number of non-bonding pairs of electrons or lane pairs (d) Electron pair geometry (e) Molecular geometry (1) Bond Angle Note: For 5 & 6, give the information for the encircled atom only.
- Determine a molecular formula, for example, CH4, from the line structure below. (Specify elements in the following order: C, H, others (in alphabetical order). Example: C4H7CIOS) Molecular formulaDetermine a molecular formula, e.g. CH4, from the line structure below. Specify elements in the following order: C, H, others(in alphabetical order). Example: C4H,CIOS OH Molecular formulaThe below molecule contains [Select] carbon atoms and [Select ] hydrogen atoms. HN.
- Decide whether the Lewis structure proposed for each molecule is reasonable or not. molecule OF₂2 H₂ BO3 proposed Lewis structure : 0: || 0 = :0: O-S- || :0: || H-O-B-O-H | :0: H Is this a reasonable structure? If not, why not? O Yes, it's a reasonable structure. O No, the total number of valence electrons is wrong. The correct number is: O No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: 0 O Yes, it's a reasonable structure. O No, the total number of valence electrons is wrong. The correct number is: O No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: 0 O Yes, it's a reasonable structure. O No, the total number of valence electrons is wrong. The correct number is: O No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: 0 * If two or more atoms have the wrong number of valence electrons around them, just enter the chemical symbol for the…SC ! F1 Q @ 2 F2 W #3 Which structure has a formal charge of -1 on the carbon shown with a "C"? Note that the atom of interest in each case includes any hydrogens or lone pairs that are present. =C- (b) (c) (d) O a.. O b.. O c.. O d.. A Moving to another question will save this response. >> 20 F9 F10 F3 F4 E @ $ 4 R % F5 T MacBook Air F6 6 Y & 7 F7 U * 00 8 DII FB ( 9 ) 0 I P a F11The carbon–carbon bond length in C2H2 is 1.20 Å, that inC2H4 is 1.34 Å, and that in C2H6 is 1.53 Å. Near which ofthese values would you predict the bond length of C2 tolie? Is the experimentally observed value, 1.31 Å, consistent with your prediction?
- I am having trouble figuring out which ones are isomers and which ones are resonance structures. Can you help me?Valine is an essential amino acid, which means that it cannot be manufactured in the body and must be obtained through dietary sources. It is a branched-chain amino acid that works with the other two BCAAs (isoleucine & leucine) to promote normal growth, repair tissues, regulate blood sugar, and provide the body with energy.Correct each of the three drawings below (i.e., add or remove lone pairs, charges, and atoms) to show valine at pH 1, pH 7, and pH 11. The pKa values for valine's ionizable groups are 2.29 for the –COOH group and 9.72 for the –NH3+ group. (same drawing on each part)It’s skeletal NOT condensed. Thank you!