Author Question: One number has three significant figures and another number has four significant figures. If these ... (Read 179 times)

bclement10 · **on:** Aug 1, 2020

Question 1

One mole of the carbon-12 isotope contains 6.022 × 10²³ atoms. What volume in m³ would be needed to store one mole of cube-shaped children's blocks 2.00 cm long on each side?

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4.8 × 10¹⁸

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1.2 × 10²²

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6.0 × 10²³

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1.2 × 10²⁴

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4.8 × 10²⁴

Question 2

One number has three significant figures and another number has four significant figures. If these numbers are added, subtracted, multiplied, or divided, which operation can produce the greatest number of significant figures?

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the addition

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the subtraction

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the multiplication

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the division

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All the operations result in the same number of significant figures.

tranoy · **Reply #1 on:** Aug 1, 2020

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