How many titanium atoms are in a pure titanium bicycle frame with a mass of 1.50 kg?
回答 (1)
2018-02-23 9:37 am
Molar mass of Ti (titanium) = 47.90 g/mol
No. of moles of Ti = (1.50 kg) × (1000 g/kg) / (47.90 g/mol) = 1500/47.90 mol
Avogadro constant = 6.022 × 10²³ /mol
No. of Ti atoms = (1500/47.90 mol) × (6.022 × 10²³ /mol) = 1.89 × 10²⁵
No. of moles of Ti = (1.50 kg) × (1000 g/kg) / (47.90 g/mol) = 1500/47.90 mol
Avogadro constant = 6.022 × 10²³ /mol
No. of Ti atoms = (1500/47.90 mol) × (6.022 × 10²³ /mol) = 1.89 × 10²⁵
收錄日期: 2021-05-01 13:50:20
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https://hk.answers.yahoo.com/question/index?qid=20180223012344AA6OU5N