How Do Significant Figures Affect Calculations in Chemistry?

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In calculations involving significant figures in chemistry, the result must reflect the precision of the given data. For 5.8 moles of KOH, which has two significant figures, the calculation yields 325.438g. When applying significant figures rules, this value should be rounded to 330g, or 3.3E2g, which is appropriate given the two significant figures from the moles. The rounding may seem excessive, but it accurately represents the precision of the initial measurement. Accurate application of significant figures is crucial for maintaining the integrity of scientific calculations.
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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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