Vinegar samples Essay Example

= 4 ( 1 = 4

2O = 2 ( 16 = 32

24 + 4 + 32 = 60

Then to get my control results I had to multiply 37.75 by 60 and then I have to multiply that again by 10, which equalled 90.6 g/l.

Now this was done, I had to do the four fish and chip shop samples.

Blue Whale = I carried out the experiment again as shown above. I recorded the results three times and got these readings.

1st 41 cm3

2nd 39 cm3

3rd 39 cm3

I then added all the readings together and divided then by three and got 39.7 cm3. I Then multiplied it by 0.1 after this I divided it by 25 and I got 0.1588. Then I multiplied it by 60 and got 9.528, then multiplied this by 10. Then after this long equation my final result came out as 95.28 g/l. This concludes that the Blue Whale fish and chip shop do not dilute their vinegar.

Fish Frier = I did the experiment again but with the different sample and got these results.

31 + 29 + 27 / 3 = 29

0.1 ( 29 ( 1 / 25 ( 1 = 0.116 ( 60 = 9.96 ( 10 = 69.6 g/l

This concludes that the Fish Frier fish and chip shot dilute their vinegar a lot.

Frying Tonight = I did the experiment again this time I got these results.

16 + 17 + 15 / 3 = 16

16 ( 0.1 ( 1 / 25 ( 1 = 0.064 ( 60 = 3.84 ( 10 = 38.4 g/l

This concludes that the Frying Tonight fish and chip shop dilutes their vinegar a great deal more than they do

at the Fish Frier fish and chip shop.

Frier Tuck = finally I did the experiment one last time and got these result.

21 + 21 + 21 / 3 = 21

21 ( 0.1 ( 1 / 25 ( 1 = 0.084 ( 60 = 5 .04 g/l

These results conclude that the Frier Tuck fish and chip shop do also dilute their vinegar.

The tests that I carried out were that I measured 25 cm3 of each vinegar sample and added an indicator (phenolphthalein) to them. I then measured the amount of sodium hydroxide I added to the vinegar solution until it turned to the colour pink.

These results conclude that the following fish and chip shops dilute their vinegar: Fish Frier, Frying Tonight and Frier Tuck. The results also include that Blue Whale fish and chip shop don't water down their vinegar.

I hope that my investigation has been of help.