(1)t1°C时,丙物质的溶解度为
(2)t2°C时,往盛有50g蒸馏水的烧杯中加入50g甲固体,充分溶解后所得溶液的质量为
(3)除去甲中含有的少量丙,可采用的方法是
(4)将t1°C时的甲、乙、丙三种物质的饱和溶液升温至t2°C,所得溶液溶质的质量分数由大到小的顺序为
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