The task of analytical chemistry 21

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Wine from the two barrels was analyzed for alcohol content to determine whether it is from one source. The average content of ethanol in the first barrel, equal to 12.61 per cent, was established on the basis of 6 tests. Average of four analyses of wine from the second barrel equal to 12.53% alcohol. The combined value of 5 to 10 tests is equal to 0,070%. These data indicate that wine different?

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