By: Maidelyn Pineiro, Katlin Reed, Kaleyanne Staples
First and Second Time Lapse for 140 Degrees
1:13.27- all the sugar that was added to the beaker has dissolved and the water was clear with no evidence of having sugar inside it.
(140 degrees, 5ML of sugar, 100ML of water)
First and Second Time lapse for 120 Degrees
1:49.82- the water is clear and there is no sugar left.
(120 degrees, 5ML of sugar,100ML of water)
why does sugar dissolve in water with temperature?
- The reason why sugar dissolves at a faster rate in hot water has to do with increased molecular motion. The added energy in the hot water causes water molecules to move faster and sucrose molecules to vibrate faster.
The reason the hot water dissolves more is because it has faster moving molecules which are spread further apart than the molecules in the cold water. With bigger gaps between the molecules in the hot water, more sugar molecules can fit in between.
Constant: glass cup, hot plate, amount of solute, amount of water, type of solute, the stirring of the solute.
Materials: water, sugar, hot plate, thermometer
- add 10 milliliters of water in the glass cup
- measure the temperature of the water when the hot plate is on
- add 5 milliliters of sugar into the water
- stir 3 times around completely
Organization: write down what the solution looks like after every 30 seconds.