The mass of a carbon-12 atom is 1.99\times 10^{-23}1.99×10

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grams. The mass of a neutron is 1.68\times 10^{-24}1.68×10

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grams. How many times greater is the mass of a carbon-12 atom than the mass of a neutron? Write your answer in standard notation, rounding to the nearest tenth.

If the mass of one electron is 9.11 x 10-28 g, and you are looking for the mass of a mole of electrons, you need to understand Avogadro's number. One mole is 6.02 x 1023 particles. So you will have to multiply (6.02 x 1023) x (9.11 x 10-28 g) to get your answer of 5.48 x 10-4 grams (answer rounded to significant figures)

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The mass of a carbon-12 atom is 1.99\times 10^{-23}1.99×10 −23 grams. The mass of a neutron is 1.68\times 10^{-24}1.68×10 −24 grams. How many times greater is the mass of a carbon-12 atom than the mass of a neutron? Write your answer in standard notation, rounding to the nearest tenth.

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The mass of a carbon-12 atom is 1.99\times 10^{-23}1.99×10

−23

grams. The mass of a neutron is 1.68\times 10^{-24}1.68×10

−24

grams. How many times greater is the mass of a carbon-12 atom than the mass of a neutron? Write your answer in standard notation, rounding to the nearest tenth.