Why do ionic compounds dissolve well in water? Select all that are true.
Question 5 options:
Because water and ionic compounds are both polar
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
Save
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
Why do ionic compounds dissolve well in water? Select all that are true.
Question 5 options:
Because water and ionic compounds are both polar | ||||||||||||||||||||||||||||||||||||||||||||
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:
Save 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:
|