Comparing the masses, after and before reaction
Aim
To determine if mass is preserved in a chemical reaction conducted with vinegar and Sodium bicarbonate.
Hypothesis:
The mass of the flask and vinegar after the reaction will be less due to the fact that it is losing the gas which is being produced when the elements are mixed. However part B will be altered as the gas will be preserved inside the balloon.
Apparatus
Balance
Sodium bicarbonate
Spatula
Measuring cylinder
2 conical flasks
Balloon
Vinegar
funnel
Procedure
Part A
1) Produce a table, which are 4 by 2 in class book for part A.
2) The first column will include ‘Mass of the flask and vinegar M1), followed by ‘Mass of the Bicarbonate M2’, ‘total mass before reaction …show more content…
(Ensure that the balance is reading 0 before weighing)
5) Using the measuring cylinder measure exactly 20 ml of vinegar.
6) Add 20 ml of vinegar into an unused flask.
7) Make sure again that that balance is reading 0 and weigh the mass of vinegar and flask. (don’t forget to record the mass)
8) To the flask containing the vinegar, add 2 grams of sodium bicarbonate and swirl until the bubbling stops.
9) After the reaction, weigh the flask and record the final mass (M3)
Part B
1) Create a table, which is again 4 by 2 (4x2)
2) Carefully follow steps 2 from previous part but however this time include the balloon in the mass of in the first column.
3) Weigh the vinegar, flask and a balloon and record the mass (M1). (ensure that the balance is reading 0)
4) Add 2.0 grams of sodium carbonate (M2) to the flask and quickly stretch the opening of the balloon over the neck of the flask to collect the gas as well as avoiding it from entering the atmosphere.
5) Finally record the final mass after the reaction and record it (M3)
Results
Mass of the flask and Vinegar (M1) Mass of sodium bicarbonate (M2) Total mass before reaction (M1+M2) Mass after reaction
69.3g 2.0g 71.3g …show more content…
I witnessed that there was a difference of 0.6 grams in the final mass, due to the loss of the gas (carbon Dioxide- CO2) produced in the experiment. Part B of the experiment was diverse to the previous one as it included to using a different equipment to try to change the results, a balloon which ensured to keep the initial mass and the mass after the reaction the same or very similar. In part B there were no loss of air as the initial mass and the after reaction mass were very similar, which was due to the loss of just 2g (grams) of Carbon Dioxide, when the team was not quick enough to place the balloon on the tip of the
Aim
To determine if mass is preserved in a chemical reaction conducted with vinegar and Sodium bicarbonate.
Hypothesis:
The mass of the flask and vinegar after the reaction will be less due to the fact that it is losing the gas which is being produced when the elements are mixed. However part B will be altered as the gas will be preserved inside the balloon.
Apparatus
Balance
Sodium bicarbonate
Spatula
Measuring cylinder
2 conical flasks
Balloon
Vinegar
funnel
Procedure
Part A
1) Produce a table, which are 4 by 2 in class book for part A.
2) The first column will include ‘Mass of the flask and vinegar M1), followed by ‘Mass of the Bicarbonate M2’, ‘total mass before reaction …show more content…
(Ensure that the balance is reading 0 before weighing)
5) Using the measuring cylinder measure exactly 20 ml of vinegar.
6) Add 20 ml of vinegar into an unused flask.
7) Make sure again that that balance is reading 0 and weigh the mass of vinegar and flask. (don’t forget to record the mass)
8) To the flask containing the vinegar, add 2 grams of sodium bicarbonate and swirl until the bubbling stops.
9) After the reaction, weigh the flask and record the final mass (M3)
Part B
1) Create a table, which is again 4 by 2 (4x2)
2) Carefully follow steps 2 from previous part but however this time include the balloon in the mass of in the first column.
3) Weigh the vinegar, flask and a balloon and record the mass (M1). (ensure that the balance is reading 0)
4) Add 2.0 grams of sodium carbonate (M2) to the flask and quickly stretch the opening of the balloon over the neck of the flask to collect the gas as well as avoiding it from entering the atmosphere.
5) Finally record the final mass after the reaction and record it (M3)
Results
Mass of the flask and Vinegar (M1) Mass of sodium bicarbonate (M2) Total mass before reaction (M1+M2) Mass after reaction
69.3g 2.0g 71.3g …show more content…
I witnessed that there was a difference of 0.6 grams in the final mass, due to the loss of the gas (carbon Dioxide- CO2) produced in the experiment. Part B of the experiment was diverse to the previous one as it included to using a different equipment to try to change the results, a balloon which ensured to keep the initial mass and the mass after the reaction the same or very similar. In part B there were no loss of air as the initial mass and the after reaction mass were very similar, which was due to the loss of just 2g (grams) of Carbon Dioxide, when the team was not quick enough to place the balloon on the tip of the