By Why are hydrocarbons insoluble in water?
Hydrocarbons are not soluble in water because they are hydrophobic. The term hydrophobic means “water-fearing” and hydrophobic molecules do not interact with water because it is energetically unfavorable. Hydrophobic molecules, such as hydrocarbon chains, are non-polar.
Why are hydrocarbons not soluble in water quizlet?
No, hydrocarbons being non-polar are not soluble in water, because hydrocarbons can’t form hydrogen bonds with water. You just studied 51 terms!
Which of the following effect can occur because of the high surface tension of water?
The high surface tension of liquid water keeps the ice on top. The crystalline lattice of ice causes it to be denser than liquid water. The partial negative charge at one end of a water molecule is attracted to the partial positive charge of another water molecule.
How many electron pairs does carbon share to complete its valence shell?
four pairs
By forming four covalent bonds, carbon shares four pairs of electrons, thus filling its outer energy level and achieving stability.
Why alkanes and other hydrocarbons are insoluble in water?
Alkanes are not soluble in water, which is highly polar. The two substances do not meet the criterion of solubility, namely, that “like dissolves like.” Water molecules are too strongly attracted to one another by hydrogen bonds to allow nonpolar alkanes to slip between them and dissolve.
Do hydrocarbons have high melting points?
Alkanes and cycloalkanes are nonpolar substances. Attractive forces between alkane molecules are dictated by London forces (or dispersion forces, arising from electron fluctuations in molecules; see chemical bonding: Intermolecular forces) and are weak. In general, solid alkanes do not often have high melting points.
What are the hydrocarbons insoluble in water?
Explanation: “Like dissolves like.” This means that polar solvents can only dissolve polar solutes, and nonpolar solvents can only dissolve nonpolar solutes. Water is a polar solvent and hydrocarbons are nonpolar, so hydrocarbons are insoluble in water.
What are hydrocarbons that are insoluble in water called?
Alkanes are nonpolar compounds that are low boiling and insoluble in water.
Which of the following is a property of water quizlet?
List the properties of water. Cohesion, Adhesion, High Specific Heat Capacity, High Specific Heat of Vaporization, Highest Density of Water at 4 degrees C. Explanation: Water molecules form hydrogen bonds with one another causing high surface tension.
What is the property of surface tension?
Surface Tension: “The property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules.” The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.
How many electrons are present in C2?
The C2 molecule has 12 electrons.
Why do hydrocarbons not mix with water?
Oil and water don’t mix and would be forever separated from each other. The hydrophobic effect is caused by the hydrocarbons tendency to repel water molecules. The molecular structure of hydrocarbons creates a cage that doesn’t allow water to pass through them.
What substances are not soluble in water?
“Insoluble” generally means that a substance does not dissolve in water. Some examples include: sand, fats, wood, metals, and plastic.
Do hydrocarbons repel water?
Hydrocarbons are non polar by nature and will naturally repel polar water molecules. This is where the hydrophobic effect got its name. There are many types of hydrocarbons and they are classified into saturated hydrocarbons, unsaturated hydrocarbons, cycloalkanes and aromatic hydrocarbons.
Why is tetrahydrofuran soluble in water?
THF (tetrahydrofuran) is not soluble in water, but miscible. Water can create hydrogen bonds with the oxygen in THF, which makes it easier for them to “play together.” Because THF can’t rotate around unlike diethyl ether, it creates strong interactions with water, making it miscible.