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From your General Chemistry knowledge, what are the rules for expressing significant figures in multiplication and...

From your General Chemistry knowledge, what are the rules for expressing significant figures in multiplication and division?

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Answer #1

Assign the significant figures for the obtsined answer which must contain the least number of significant figures present in the original numbers.

for example,

25.62 * 10.9 = 279.258

from the two numbers 25.62 have 4 significants and 10.9 have 3 significants

so the obtained answer 279.258 rounded off to 3 significant figures.

279.258 = 2.7925 *10^2

               = 2.79 * 10^2 (rounded off to 3 significants)

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