Question

For this set of questions, you will only have ONE SUBMISSION. You will need to draw...

For this set of questions, you will only have ONE SUBMISSION. You will need to draw the Lewis structures if they are not given.

Which molecule contains the longer C O bond?

CO2CO     

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Question Part

ONE SUBMISSION. Which molecule contains the shorter O O bond?

H2O2 (one H on each O)O3     

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My NotesONE SUBMISSION. Which molecule contains the stronger C C bond?

C2H4 (two H on each C)C2H2 (one H on each C)     

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My NotesONE SUBMISSION. Which ion has the larger N O bond order?

NO21-NO31-     

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My NotesONE SUBMISSION. Which ion contains the weaker N O bond?

NO31-NO21-     

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Rank the following three samples from least to greatest in mass. Your response should be a three letter "word" made up of the letters a, b and c. If you think sample a has the least mass and c has the greatest mass, then you would enter abc in the answer box.
a) one mole of C2H4
b) one mole of HF
c) one mole of O2

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Rank the following three samples from least to greatest in mass. Your response should be a three letter "word" made up of the letters a, b and c. If you think sample a has the least mass and c has the greatest mass, then you would enter abc in the answer box.
a) one mole of NF3
b) one mole of CH2Cl2
c) one mole of Ca(OH)2

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Rank the following three samples from least to greatest in number of molecules. Your response should be a three letter "word" made up of the letters a, b and c. If you think sample a has the least number of molecules and c has the greatest number of molecules, then you would enter abc in the answer box.
a) one mole of C10H22
b) two moles of C2H6
c) three moles of PCl5

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Rank the following three samples from least to greatest in number of atoms. Your response should be a three letter "word" made up of the letters a, b and c. If you think sample a has the least number of atoms and c has the greatest number of atoms, then you would enter abc in the answer box.
a) one mole of C10H22
b) one mole of C2H6
c) one mole of PCl5

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Rank the following three samples from least to greatest in number of atoms. Your response should be a three letter "word" made up of the letters a, b and c. If you think sample a has the least number of atoms and c has the greatest number of atoms, then you would enter abc in the answer box.
a) one mole of C3H8
b) one mole of C6H6
c) one mole of C2H6O

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Homework Answers

Answer #1

1) the length of single bond is more then double and triple bond

Bond length order:

Single bond> double bond > triple bond

CO2 contains double bond while CO contain triple so CO2 will have longer bond

2) o3 will have shorter bond length

3) order of strength

Triple bond > double bond > single bond

C2H2 will have stronger bond as it contain triple bond

4) bond order of NO2- = 3 electrons / 2 bonding group = 1.5

NO3- = 4 electrons / 3 bonding group = 1.33

Hence NO2 - wil have more bond order

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