Helloo

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Chemistry
Heinz| Trial 1 ml| Trial 2 ml| Trial 3 ml|
Initial| 0| 9.6| 9.9|
Final| 9.6| 17.7| 18.1|
Used| 9.6| 8.1| 8.2|
Average: 8.6ml
No Name| Trial1 ml| Trial2 ml| Trail3 ml|
Initial| 17.5| 26| 0|
Final| 26.0| 34.6| 8.6|
Used| 8.5| 8.6| 8.6|
Average: 8.5 ml
Great Value| Trial1 ml| Trial2 ml| Trial3 ml|
Initial| 34.6| 30.1| 18.1|
Final| 43.9| 38.9| 26.3|
Used| 9.3| 8.8| 8.2|
Average: 8.7ml
Calculations:
CH3COOH + NaOH >> CH3COONa + H2O

Concentration of NaOH = 0.25mol/0.25L
= 1.0 mol/L
Mols of NaOH = 1.0(0.25)
= 0.25 mol

Great Value
Mol of NaoH = Mol Of Vinegar
Mol NaOH = 1.0(0.087) = 0.087mol
0.087 = mol of vinegar
Concentration of vinegar = 0.087/0.10 = 0.87 Mol/L

No Name
Mol of NaoH = Mol Of Vinegar
Mol NaOH = 1.0(0.085) = 0.085mol
0.085 = mol of vinegar
Concentration of vinegar = 0.085/0.10 = 0.85 Mol/L

Heinz

Mol of NaoH = Mol Of Vinegar
Mol NaOH = 1.0(0.086) = 0.086mol
0.086 = mol of vinegar
Concentration of vinegar = 0.086/0.10 = 0.856 Mol/L

Conclusion:
After doing this lab it was found that the concentrations of the vinegar were close to the claimed value by the manufacturers. The great value brand had the exact concentration that was claimed. The concentration was 0.87 mol/L. The no name brand had a lower concentration of vinegar. Its concentration was 0.85mol/L. This was because the bottle had been left open for a long time, and it’s ions were lost in the air. This has been further discussed in our sources of error. The final Brand was Heinz. The concentration for this brand was very close. Its concentration was 0.86mol/L. Overall we can say that Great value had the claimed concentration and other were also very close.
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