mol of nitrogen in 0.40 mol of caffeine.?
回答 (2)
2018-04-11 12:22 am
The molecular formula of caffeine is C₈H₁₀N₄O₂.
Each mole of caffeine (C₈H₁₀N₄O₂) contains 4 moles of N atoms.
No. of moles of N atoms in 0.40 mol of caffeine = (0.40 mol) × 4 = 1.6 mol (2 sig. fig.)
Each mole of caffeine (C₈H₁₀N₄O₂) contains 4 moles of N atoms.
No. of moles of N atoms in 0.40 mol of caffeine = (0.40 mol) × 4 = 1.6 mol (2 sig. fig.)
2018-04-11 12:12 am
Formula: of caffeine is C8H10N4O2
there are 4 moles of N in a mole of the caffeine
so in 0.40 moles of caffeine we have 1.6 moles of N ( significant figures ignored in this case ?
there are 4 moles of N in a mole of the caffeine
so in 0.40 moles of caffeine we have 1.6 moles of N ( significant figures ignored in this case ?
收錄日期: 2021-05-01 22:22:31
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