Question

plz guys help me in this question and provide explanation

Q. The mass of an atom is 1.025×10^-17 gram. What would be the mass of 8000 such atoms be?

Answer 1

Mass of one atom is 1.025 × 10¹⁷

Mass of 8,000 atoms = 8,000 × 1.025 × 10⁻¹⁷

                                    = 8 × 1025 × 10⁻¹⁷

                                    = 8,200 ˣ 10⁻¹⁷

                                    = 8.2 × 10⁻¹⁷⁺³

                                    = 8.2 × 10 ⁻¹⁴

The mass is 8.2 × 10⁻¹⁴ g

Hope it helps :-)

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Answer 2

1.025*10^-17*8000 is the mass of 8000 such atoms.
1.025*10^-17*8000=8200*10^-17