Four problems I need your help to choose the correctanswers.
Choose all the functional groups below that can hydrogen bond donate, (ie contains a H that can hydrogen bond). Choose all the functional groups below that can hydrogen bond accept, (ie contains a pair of electrons that could interact with a H through a hydrogen bond). Using intermolecular forces, predict which compound would have the highest boiling point? Below is a crown ether. Crown ethers are often use to help dissolve ionic compounds. Which ionic compound would this crown ether help dissolve and why? Choose only one answer. It would help dissolve CH3CH2CH2CH2H3N+ -Cl best. It will trap the cationic organic, CH3CH2CH2CH2H3N+, inside the ether because the electrons of the crown ether's oxygens will strongly interact with the positively charged nitrogen.It would help dissolve CH3CH2CH2CH2O-+Na best. It will trap the cationic metal, Na+, inside the ether because the electrons of the crown ether's oxygens will strongly interact with the positively charged sodium. It would help dissolve CH3CH2CH2CH2H3N+-CI best. It will trap the anionic metal, CI-, inside the ether because the electrons of the crown ether's oxygens will strongly interact with the negatively charged chlorine. lt would help dissolve CH3CH2CH2CH2O-+Na best. It will trap the anionic organic compound, CH3CH2CH2CH2O-. inside the ether because the electrons of the crown ether's oxygens will strongly interact with the negatively charged oxygen.
Show transcribed image textChoose all the functional groups below that can hydrogen bond donate, (ie contains a H that can hydrogen bond). Choose all the functional groups below that can hydrogen bond accept, (ie contains a pair of electrons that could interact with a H through a hydrogen bond). Using intermolecular forces, predict which compound would have the highest boiling point? Below is a crown ether. Crown ethers are often use to help dissolve ionic compounds. Which ionic compound would this crown ether help dissolve and why? Choose only one answer. It would help dissolve CH3CH2CH2CH2H3N+ -Cl best. It will trap the cationic organic, CH3CH2CH2CH2H3N+, inside the ether because the electrons of the crown ether's oxygens will strongly interact with the positively charged nitrogen.It would help dissolve CH3CH2CH2CH2O-+Na best. It will trap the cationic metal, Na+, inside the ether because the electrons of the crown ether's oxygens will strongly interact with the positively charged sodium. It would help dissolve CH3CH2CH2CH2H3N+-CI best. It will trap the anionic metal, CI-, inside the ether because the electrons of the crown ether's oxygens will strongly interact with the negatively charged chlorine. lt would help dissolve CH3CH2CH2CH2O-+Na best. It will trap the anionic organic compound, CH3CH2CH2CH2O-. inside the ether because the electrons of the crown ether's oxygens will strongly interact with the negatively charged oxygen.
Water molecules have partial charges that attract the ions in the solid compound, causing it to dissociate into separated ions
Because organic compounds are nonpolar
Water molecules can surround an ion, and neutralize the ion's charge using either it's partial positive or negative side.
The individual ions are solvated by water molecules which stabilizes the ions
2. Which compound is soluble in ether but not soluble in aqueous sodium hydroxide?
Question 2 options:
ArOH
Ar
ArCOOH
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When you have a two-layer mixture of water and tert-butyl methyl ether, what physical property of these liquids assures you that the ether is the top layer?
Question 4 options:
low density was my answer was
You perform each extraction twice, first with 1 mL and second with 0.15 mL. Why is the second extraction necessary?
Question 8 options:
several small extractions is better than one large one
to remove any orgnaic material contaninating tube 2
to remove any remaining neutral compound
7. Which of the following reactions is not favorable?
Question 7 options:
ArCOOH + NaOH â ArCOO-Na+ + H2O
ArOH + NaHCO3 â ArO-Na+ + CO2 + H2O
ArCOOH + NaHCO3 â ArCOO-Na+ + CO2 + H2O
9.Why is phenol more acidic than an aliphatic alcohol?
Question 9 options:
Its conjugates baseâs negative charge is localized on the oxygen
Phenols have a stronger O-H bond
Only the phenol can form hydrogen bonds
Its conjugated base is stabilized by resonance
Which aqueous base reacts with a carboxylic acid but not with phenol? Why?
Question 10 options:
Sodium bicarbonate, it is a weaker base and will only react with strong acids
Sodium hydroxide, it is a strong base and will only react with strong acids
Sodium bicarbonate, it is a weak base and will only react with weak acids
Sodium hydroxide, it is a strong base and will only react with weak acids