(1)t2℃时,乙物质在M点是
(2)t1℃时,要使乙物质的不饱和溶液变为该温度下的饱和溶液的一种方法是
(3)t2℃时,将30g甲物质加入50g水中形成的溶液质量为
(4)将t1℃时甲、乙、丙三种物质的饱和溶液升温至t2℃,所得溶液的溶质质量分数由大到小的顺序是
(5)t1℃时,将40g丙物质的饱和溶液稀释为质量分数为10%的溶液,需加水的质量为
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