已知:
OB段反应的化学方程式为Na2CO3+HCl=NaCl+NaHCO3
BD段(不含B点)反应的化学方程式为NaH CO3+HCl=NaCl+H2O+CO2↑
请回答:
(1)A点对应溶液中溶质有
(2)B点横坐标为
(3)假设C点横坐标为54.75,计算C点对应的二氧化碳质量。(写出计算过程)
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