Question

How to divide 10²¹ by 6.022 ×10²³

Answer 1

ahoy !!

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just subtract the power of 10 in denominator from the power of 10 in numerator.

so,

$\frac{10^{21}}{6.022(10^{23})}$

$\frac{1000}{6022} (10^{21}- 10^{23}) = 0.166 (10^{-2}) = 1.66 (10^{-3})$

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