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How many atoms are in 63.0g O2g?

Sagot :

Khansarahh04idn

Explanation:

atomic mass of oxygen(O)= 16g

no. of moles=given mass/molar mass

no. of moles=63/32 = 2 mol

but 1 mol of oxygen atom contains 6.022 × 10²³ atoms

therefore, 2mol of O2 = 2×6.022×10²³

= 12.044×10²³ atoms

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