The dissolution rate of a substance is affected by the surface area that can react with the liquid it is dissolving in. Powdering it increases the surface area so it increases the dissolving rate.
Heating causes an increase in speed of dissolving as does stirring faster. In addition, crushing to a fine powder (smaller particle size) increases the surface area to volume ration and helps the substance to dissolve faster.
The actual surface area of the substance is larger when it's in powdered form, and as dissolving only happens at the surface area, dissolving a powder is a faster process. It is not an absolute necessity , though. When the substance is not powdered, it will dissolve as well, as the amount you can dissolve is only dependent on the substance involved. However, in powdered form, it will dissolve quicker.
You can dissolve a large tablet by placing it in a glass of water and stirring until it is completely dissolved. Alternatively, you can crush the tablet into a fine powder and mix it with water to help it dissolve faster.
No, talcum powder will not dissolve in cold water. Talcum powder is insoluble in water, meaning it will not mix or dissolve in water at any temperature.
Synthetic magnesium silicates are insoluble in water or alcohol.
yes.
Heating causes an increase in speed of dissolving as does stirring faster. In addition, crushing to a fine powder (smaller particle size) increases the surface area to volume ration and helps the substance to dissolve faster.
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All of the above can help a substance dissolve faster in a solvent. Crushing the substance to a powder increases the surface area for interaction, agitation helps distribute the solute throughout the solvent, and raising the temperature can increase the kinetic energy of particles, speeding up the dissolution process.
The actual surface area of the substance is larger when it's in powdered form, and as dissolving only happens at the surface area, dissolving a powder is a faster process. It is not an absolute necessity , though. When the substance is not powdered, it will dissolve as well, as the amount you can dissolve is only dependent on the substance involved. However, in powdered form, it will dissolve quicker.
It depends on what kind of 'powder' it is.
Baking powder is Sodium Bicarbonate a polar compound that is particularly amenable to water (a polar solvent). So Baking powder will dissolve faster than a non-polar powder like Talcum powder. Also baking power is very finely ground and will present a large surface area to the water which hastens dissolving. Salt in comparison although a strongly polar compound is course ground and will take longer to dissolve.
smarties are made out of powder
yes- if you heat it up it will dissolve faster
One example of a white powdery substance that does not dissolve in water is talcum powder, which is commonly used in cosmetic products and baby powder.
Salt, sugar, ground coffee, cocoa, chocolate powder, and iced tea powder are some substances that dissolve in water.
A soluble substance is a substance that can dissolve in another substance.