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I noticed in the empirical formula problems in in the post module assignment, some of the elements are rounded off. For example Hydrogen (instead of 1.008, it is stated as 1.0), Oxygen (instead of 15.999, it is used as 16), do we stick to this concept where we round the numbers and not put the exact same numbers? Does it matter?
Also, this may come in handy when we start using them more, but it was mentioned in class how the final answer should have the least amount of significant figures. If one part of the problem has 3 sig figs and the other part has 6 sig figs, then I think your final answer should be rounded to 3 sig figs.
NabilaNizam-1K wrote:In case of calculations that require the usage of values from the periodic table, are we supposed to use the exact value stated or should we round it up?
I believe that for calculations that require the usage of values from the periodic table, we should use the exact value stated for the element in order to obtain the most accurate answer. Then, we should round up the answer to the correct significant figure according to the information given in the problem.
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