(1)称取2.76g白云石,加热到质量不再变化,冷却到室温,再称量固体质量为1.44g.试通过数据分析得出白云石的化学式为
(2)若再称取2.76g白云石,研碎后与过量炭粉混合,放在特定仪器中隔绝空气强热一段时间后,测得白云石分解率为a(设白云石CaCO3、MgCO3同比分解),生成VL一氧化碳。已知:
①CO的密度为:1.25g/L;②CaO+3CCaC2+CO;2MgO+5C Mg2C3+2CO;C+CO22CO
①试计算V为多少L?
②请在图中画出V和a的关系图.
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2