How many molecules of (NH4)2SO4 in of 0.00345 moles? and How many oxygen atoms in of 0.00345 moles?
回答 (1)
2016-06-20 7:01 am
✔ 最佳答案
1 mol of (NH₄)₂SO₄ contains 6.022 × 10²³ molecules.No. of molecules in 0.00345 mol = (6.022 × 10²³) × 0.00345 molecules = 2.08 × 10²¹ molecules
1 (NH₄)₂SO₄ molecule contains 4 O atoms.
No. of O atoms = [(6.022 × 10²³) × 0.00345] × 4 atoms = 8.31 × 10²¹ atoms
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