I this lab we studied density. our target goal is to find how density causes more stratification, and to mix two types of water one green and one yellow.
What we will need is:
Two 250 mL and one 500 mL Beaker.
A scale.
A stirring stick
Food coloring (yellow and blue)
Warm water and cold water.
Our first step was to define density and figure out you find density. Well
density is the amount of things inside an object.
The way to calculate
density is easy Just use the equation Mass/Volume, its really simple you
just have to find these two values and then
divide.
During this step we measured the weight of the empty beakers. then we added 250mL of cold water into one and then 250mL of warm water in the other beaker.
What we will need is:
Two 250 mL and one 500 mL Beaker.
A scale.
A stirring stick
Food coloring (yellow and blue)
Warm water and cold water.
Our first step was to define density and figure out you find density. Well
density is the amount of things inside an object.
The way to calculate
density is easy Just use the equation Mass/Volume, its really simple you
just have to find these two values and then
divide.
During this step we measured the weight of the empty beakers. then we added 250mL of cold water into one and then 250mL of warm water in the other beaker.
COLD:
In the cold beaker we added 20g of salt and stirred the water.
Then we added five drops of food coloring then stirred again, this allowed the
mixture to settle and be ready to pour into the bigger beaker. After we added
water salt and food coloring we weigh the beaker again, but with the water this
time. In my group if my measurements are correct the beaker itself weighed
117.0g and with the water it weighed 336.0g. We had to calculate density now so
we would plug our numbers into our equation which Mass/Volume.
336/200= 001.68g
In the cold beaker we added 20g of salt and stirred the water.
Then we added five drops of food coloring then stirred again, this allowed the
mixture to settle and be ready to pour into the bigger beaker. After we added
water salt and food coloring we weigh the beaker again, but with the water this
time. In my group if my measurements are correct the beaker itself weighed
117.0g and with the water it weighed 336.0g. We had to calculate density now so
we would plug our numbers into our equation which Mass/Volume.
336/200= 001.68g
WARM:
This time we added 250mL of warm water and then added NO salt to this beaker. Now we add five drops of food coloring and then stir. Weigh the beaker, then if you did it right it should Measure to about 294.4g. Then we plug that into our equation and it should come put to about 001.472.
294.4/200=001.427
In my group our mixing failed twice so, instead of making layers the colors mixed and made green. and that was the outcome of our lab. The reason why our colors mixed is because we went too fast, so always remember to go slow when doing this.