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What is the correct order by size of the following molecules water sucrose glucose and protein?
The correct order by size of the molecules listed would be protein > sucrose > glucose > water. Proteins are the largest molecules, followed by sucrose (a disaccharide), glucose (a monosaccharide), and then water.
Why do sucrose molecules associate with water?
Sucrose molecules associate with water because they are polar, with both positive and negative charges. Water molecules are also polar, so they are attracted to the charged regions on the sucrose molecules, forming hydrogen bonds. This interaction between sucrose and water allows sucrose to dissolve in water.
What happens when sucrose dissolves in 200ml of water?
When sucrose dissolves in water, the sucrose molecules are surrounded by water molecules which break the bonds in the sucrose molecule, separating it into its constituent glucose and fructose molecules. The resulting solution is a homogeneous mixture known as a sugar solution.
Sucrose is soluble in water because the attractive forces between the solute particles are greater than the attractive forces between the solute and the solvent particles.?
You've got it in reverse. When sucrose dissolves in water, sucrose is the solute, and water is the solvent. In order to dissolve, sucrose molecules have to be more attracted to water molecules than they are to other sucrose molecules. If the attraction of sucrose to sucrose was greater than the attraction of sucrose to water, then there would be no reason for the solid sucrose to turn into the aqueous sucrose solution. Sucrose molecules would simply remain firmly attached to each other if that were the case.
Is Sucrose soluble in water because the attractive forces between the solute particles are greater than the attractive forces between the solute and the solvent particles?
You've got it in reverse. When sucrose dissolves in water, sucrose is the solute, and water is the solvent. In order to dissolve, sucrose molecules have to be more attracted to water molecules than they are to other sucrose molecules. If the attraction of sucrose to sucrose was greater than the attraction of sucrose to water, then there would be no reason for the solid sucrose to turn into the aqueous sucrose solution. Sucrose molecules would simply remain firmly attached to each other if that were the case.
What can you conclude about the permeability of potato cytoplasm with respect to sucrose and water molecules?
The permeability of potato cytoplasm to water molecules is high, allowing water to easily move in and out of the cell. However, the permeability to sucrose molecules is lower, as they require specific transport proteins to pass through the cell membrane. This difference in permeability affects how sucrose and water move across the cell membrane in potatoes.
Is sucrose miscible in water?
Yes, sucrose is soluble in water. When sucrose is added to water, it forms hydrogen bonds with the water molecules, breaking down its crystal structure and dissolving in the water.
What happens when sucrose is dissolved in water?
When sucrose is dissolved in water, the sucrose molecules break apart into individual glucose and fructose molecules. These individual molecules become surrounded by water molecules, forming a solution. This process is a physical change, as the chemical composition of the sucrose molecules remains the same even though they are now dispersed throughout the water.
What happens when you add sucrose to water and ethanol?
When sucrose is added to water, it dissolves and forms a solution due to its ability to hydrogen bond with water molecules. In ethanol, sucrose is less soluble as ethanol disrupts the hydrogen bonds between sucrose and water molecules. However, some sucrose can still dissolve in ethanol due to its polar nature.
Is a mixture of sucrose and water a solution?
Sucrose is the name for the common sugar compound. A sucrose solution is a solution made of sugar dissolved in water.
How many Sucrose molecules in 3.0 moles of sucrose?
There are 1.81 x 10^24 sucrose molecules in 3.0 moles of sucrose.
How many molecules of sucrose dissolved in 450 g of water are needed to make a 1.3 m solution?
To calculate the number of molecules, first convert 450 g of water to moles (8 moles). With a 1.3 m solution, there are 1.3 moles of sucrose for every 1 liter of water. So, you will need 10.4 moles of sucrose for 8 moles of water. Finally, use Avogadro's number to convert moles to molecules, giving you approximately 6.23 x 10^23 molecules of sucrose.
