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Substances will dissolve in each other if there are strong intermolecular forces between solvent and solute molecules.
The intermolecular forces in water are primarily Hydrogen bonds. These are the result of the dipoles (slight charge) within the molecules themselves. Oxygen attracts the negatively charged electrons in the molecule more readily than hydrogen, so it gains a slight negative charge, while leaving the hydrogen with a slight positive charge. The attraction of the positive dipole on the hydrogen of one water molecule with the negative dipole on the oxygen of another holds the water molecules together as a liquid.
Polar molecules also contain positive and negative dipoles. Sugar contains several O-H bonds, which have a similar distribution of charge to the water molecules. When sugar is added to water, these dipoles are subject to strong attractive forces from the opposite dipoles on the water molecules, causing single sugar molecules to break away from the main body of sugar and dissolve in the water.
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Why does sugar dissolve easily in milk at room temperature?
Milk is mostly water, which is very polar. Sugar (sucrose) is also a rather polar molecule. So, polar compounds dissolve readily in polar solvents. That is why sugar easily dissolves in milk.
Why does salt dissolve more slowly in vinegar than sugar?
Sugar is polar, and vinegar is usually a solution of water and acetic acid... both of which are polar. Oil is non-polar.
Why does not sugar dissolve in cold milk?
Even in cold water sugar will dissolve eventually, but it does dissolve faster in hot water. Hot water molecules move faster than cold water molecules and therefore can more easily break sugar molecules out of solid sugar and into solution.
What physical property does sugar have that makes it dissolve in water?
A grain of sugar is actually a large collection of sugar molecules (with most of the water eliminated if dry). When the sugar grain is placed in water the sugar molecules are free to separate and drift in the water (without a chemical change to the molecules). Drying the water out again restores the sugar to crystal grains although perhaps much larger. For sugar to dissolve, water must wet it (unlike wax and oils, etc.).
Do water molecules dissolve most polar solutes?
such as sugar and salt because they are both polar substances, like the water 'LIKE dissolves LIKE
Why do small grains dissolve faster in water?
It mostly has to do with the interaction of the water molecules with the solute molecules. Smaller solute particles have an increased surface area with which to interact with the water molecules-hence they dissolve faster...
Why does sugar dissolve easily in milk at room temperature?
Milk is mostly water, which is very polar. Sugar (sucrose) is also a rather polar molecule. So, polar compounds dissolve readily in polar solvents. That is why sugar easily dissolves in milk.
Why does water dissolve sugar?
Because sugar is a polar molecule, which in other words means it can easily dissolve in polar solvents such as water. Water breaks the bonds between the sugar molecules, it does not break the bonds within the molecule.
What happens sugar is added to water?
The sugar will dissolve in water because sugar is polar and so is water with hydrogen bonds. When attraction happens, the water molecules will separate the sugar molecules and the sugar will be dissolved.
What things dissolves in water?
Polar molecules like sugar and ionic substances like salt will dissolve in water.
Why does salt dissolve more slowly in vinegar than sugar?
Sugar is polar, and vinegar is usually a solution of water and acetic acid... both of which are polar. Oil is non-polar.
Can sugar dissolve in vegetable oil?
Sugar has O-H bonds which are polar - they've got little plus and minus ends of electric charge. That means that sugar molecules like to stick together in crystals unless something more attractive comes along. Oil is, in general, not polar. So it doesn't really offer a "reason" for the sugar molecules to leave the crystal and spread out.
Why urea and sugar are polar?
Sugar doesn't dissolve in water naturally making it polar
What type is substances dissolve easily in water?
Water is called "the universal solvent" because many, many substances can dissolve in it. However, there are some that can dissolve easier than others: salt and sugar are some of the quickest. Liquids and liquid chemicals also "dissolve" very easily in water, i.e. the combine with water molecules to create a solution. Hope this helped!!
Does sugar dissolve in gasoline?
Usually, it does dissolve, but when it doesn't, I can come up with two reasons: 1. The water is too cold since an increased temperature increases the solubility. 2. The water is already saturated with dissolved sugar (or something else that you can dissolve in water). This is when all water molecules are 'occupied' with sugar molecules so that there are no more free water molecules who can make a hydrogen bond with the sugar. The warmer your water is, the higher the solubility is.
Why does not sugar dissolve in cold milk?
Even in cold water sugar will dissolve eventually, but it does dissolve faster in hot water. Hot water molecules move faster than cold water molecules and therefore can more easily break sugar molecules out of solid sugar and into solution.
Describe as a series of steps what happens to sugar molecules when they dissolve in water?
The individual water molecules have a polar charge at each oxygen and hydrogen atom. Sugar also has polar charges. Opposite charges attract (i.e. the charge of hydrogen in water is positive and attracts the negative charge of the oxygen atom attached to a sugar molecule). The water and sugar molecules bind together and the sugar is dissolved. All polar dilutions happen this way.
