How Do Significant Figures Affect Calculations in Chemistry?

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garet122
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Hello

I have 5.8 moles of KOH. 1Mole of KOH= 56.11g
So: 5.8moles of KOH x 56.11g/1mole= 325.438g of KOH

If, I want to follow the significant figures rules, what is the answer?

Is it 330g? If yes, it seems inaccurate.
 
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Yes, 330g (or 3.3E2g) is correct. It probably seems a little large because you are rounding up from just over 5, but two significant figures is the correct number.
 

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