How many atoms are in 2.00 x 10^-7 moles of Helium

asked Dec 28, 2022 29.5k views

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8 votes

Answer:

1.20 10^17

Step-by-step explanation:

convert to atoms using Avogadro's number

2.00 x 10^-7 moles * 6.022 X 10^23 atoms= 1.20 10^17

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