How do I do this one?
CaO, quicklime, is commercially prepared by thermally decomposing calcium carbonate. Calculate the volume of CO2 produced when 132.3 g of calcium carbonate is decomposed then the collected gas is measured at 29.2 °C and 665.1 torr.
CaCO3(s) → CaO(s) + CO2(g)
Chem Question?
2017-11-01 9:33 am
回答 (2)
2017-11-01 9:47 am
✔ 最佳答案
CaCO₃(s) → CaO(s) + CO₂(g)Mole ratio CaCO₃ : CO₂ = 1 : 1
No. of moles of CaCO₃ = 1.322 mol
Consider the CO₂ gas produced :
Pressure, P = 665.1/760.0 atm
Temperature, T = (273.2 + 29.2) K = 302.4 K
No. of moles, n = 1.322 mol
Gas law : PV = nRT
Then, V = nRT/P
Volume of CO₂ produced, V = 1.322 × 0.08206 × 302.4 / (665.1/760.0) L = 37.49 L
2017-11-01 9:34 am
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收錄日期: 2021-04-18 17:54:18
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