Question

name the devices used to measure amount of substance in ancient time ​

Answer 1

Answer:

They used to made many instruments by their own .....which were similar to the weight lifting handfits....with rocks and wood

Explanation:

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Answer 2

Answer:

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If mass and substance type of the sample are known, then atomic- or molecular masses (taken from a periodic table, masses measured by mass spectrometry) give direct access to the value of the amount of substance.

Explanation:

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