Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. When water is heated, the molecules gain energy and, thus, move faster. As they move faster, they come into contact with the sugar more often, causing it to dissolve faster.

Insoluble salts are ionic compounds that are insoluble in water: the salt continues to exist as a solid rather than dissolving in the liquid. When a salt such as sodium chloride (table salt) dissolves in water, its ionic lattice is pulled apart so that the individual sodium and chloride ions go into solution.

In my opinion, it is different because sugar and water are polar substances, so sugar can dissolve easily. However, salt can be polar and nonpolar, so it may be difficult to dissolve in water. Polar substances dissolve in polar substances. Nonpolar substances dissolve in Nonpolar substances.

When salt is mixed with water, the salt dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules. Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together.

The oppositely charged ends of polar water molecules attract the ions and pull them away, resulting in dissolving. Sugar is made from sucrose molecules which are larger and more complex than the ions in salt (See Teacher Background Lesson 1.2).

For example, sugar is much more soluble in water than is salt. But even sugar has an upper limit on how much can dissolve. In a half liter of 20 °C water, the maximum amount is 1000 grams. If you add more sugar than this, the extra sugar won’t dissolve.

Coffee will only fully dissolve in water if you are using instant coffee granules. If you are using ground coffee beans then the coffee will not fully dissolve, only 30% will dissolve and the other 70% will remain intact. Coffee falls into the category of part soluble.

Oils and fats not have any polar part and so for them to dissolve in water they would have to break some of water’s hydrogen bonds. Water will not do this so the oil is forced to stay separate from the water.

Alcohols are slightly or relatively soluble in water. Generally, alcohols tend to form hydrogen bonds with water due to the hydroxyl group which is often referred to as a hydrophilic (water-loving) group. Moreover, in alcohols, the −OH group is polar and makes them water-soluble.

Because alcohols form hydrogen bonds with water, they tend to be relatively soluble in water. Alcohols with higher molecular weights tend to be less water-soluble, because the hydrocarbon part of the molecule, which is hydrophobic (“water-hating”), is larger with increased molecular weight.

Of the given options, the largest alcohol of all is 1- pentanol and will thus have the least solubility in water. Thus, the correct answer is D. Note: Due to their polar nature, alcohols also have high boiling points.

The −OH group in alcohols is polar and forms hydrogen bonds with water which results in solubility of alcohols in water. Higher alcohols have large no. of hydrocarbon chains which results in more steric hindrance to make bonds which result in less solubility.

Ethers can form hydrogen bonds to water, since the oxygen atom is attracted to the partially-positive hydrogens in water molecules, making them more soluble in water than alkanes.

Acetone is a manufactured chemical that is also found naturally in the environment. It is a colorless liquid with a distinct smell and taste. It evaporates easily, is flammable, and dissolves in water.

Answer: Ethanol is soluble in water because it has a hydroxyl group (containing an O-H bond) which allows it to form hydrogen bonds with the water molecules. This is why hexanol is not soluble in water.

1-Hexanol (IUPAC name hexan-1-ol) is an organic alcohol with a six-carbon chain and a condensed structural formula of CH3(CH2)5OH. This colorless liquid is slightly soluble in water, but miscible with diethyl ether and ethanol.

1-Heptanol is a primary alcohol with a seven-carbon chain and the structural formula of CH3(CH2)6OH. It is a clear colorless liquid that is very slightly soluble in water, but miscible with ether and ethanol.

Let us help you simplify your studying. Solution for thanol (CH3CH2OH) and dimethyl ether (CH3OCH3) are constitutional isomers. ch3och3 or ch3ch2oh CH3CH2OH is more soluble in water since it can donate a hydrogen bond to water and accept a hydrogen bond from water.

Propanol (Ch3Ch2Ch2OH) is miscible (soluable) in water. Butanol (Ch3CH2Ch2Ch2OH) has a solubility in water of about 9g/100ml.

Silicon tetrachloride

As CCl4 are non-polar compounds so they dissolves in non polar solvents but as water is polar solvents so it doesnt dissolve in such solvents.

CCl4 is highly non polar molecule. So it doesnot dissolve in water. SiCl4 is a polar molecule. So it is dissolved in water.

Silicon dioxide has a water solubility of 0.12 g/L, whereas for example silicon carbide is water insoluble.