Who’s Cheating on the Vinegar?

Do you like vinegar on your bag of fish and chips? Lots of people do, and many chip shops let you help yourself to the vinegar. But are the manufacturers who supply the shops cheating on them? The manufacturers could be adding water, so the chip shops actually get less concentrated vinegar.

In this investigation I will get four samples of vinegar (A, B, C and D) from different shops supplied by different manufactures. My job is to carry out a series of tests to see which of the samples from the manufacturer is:-

• I predict the stronger the vinegar the less watered down it is.

• I expect the experiments to be quite accurate because I am using measurement tools to measure cm3 of liquid.

• I think that all the vinegar is slightly diluted.

• I think the strongest vinegar is the one that takes the most amount of alkali to neutralise.

n acid is any compound which when dissolved in water will produce Hydrogen cat ions H+. Acids are proton donors. Some common acids are Hydrochloric Acid, Sulphuric Acid and Nitric Acid. The pH of an acid is from 1-6. 1, 2 and 3 are strong acids. 4,5 and 6 are weak acids. They will turn litmus paper red. They are corrosive and have a bitter taste.

Some topics in this essay:
Controlled Variable, , Sample Amount, Sample Vinegar, Vinegar Sample, Nitric Acid, Sample Sample, Independent Variable, Scientific Knowledge, sodium hydroxide, Conical Flasks, 500ml sample, 20ml =, value money, amount alkali, amount sodium hydroxide, cost vinegar, amount sodium, sample sample, alkali neutralise, amount alkali neutralise, 500ml sample £100, sample £100, alkali neutralise vinegar, sample £i20 500ml,