How much acetic acid is in a 5 liter container that is marked 80% acetic acid. How much is water

1 liter of water

Step-by-step explanation:

If 80 % is acid that's means 4 liters of the 5 is acid. (0.8 * 5)

The remaining amount is 1

Volume of acetic acid = 4L

Volume of water = 1L

Step-by-step explanation:

Total volume = 5L

The solution contains 80% acetic acid.

Volume of acetic acid in the solution = 80/100 x 5 = 4L

To get the volume of water present, we subtract the volume of acetic acid from the total Volume i.e

Volume of water = 5 — 4 = 1L

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

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