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For example in HW Question 14.39 using the Nernst equation to solve for the concentration of a compound in a battery, how many significant figures does the final answer have? You have to keep track of the ln rules, and then there's the fact that you're subtracting one term from another, so you have to account for decimal places too. Is there any way to calculate significant figures at the end?
Well based on the numbers given in the question your final answer should have two sig figs. Look at the values given, and the one with the least number of sig figs is your reference for how many sig figs your final answer should have
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