Worked example: Determining an empirical formula from percent composition data | Khan Academy

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I felt like the hypothetical mass was a waste of time. It was pretty simple to solve this problem using deductive reasoning. 200 is twice 100 anyway and Chlorine has a 30-ish percent pass, so it was clear two were needed. i checked my answer by dividing the molar mass of mercury by the total formula and got 73% that way.

rinnyj
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Your videos are great! But it's "empirical" - please correct.

foreignmachine