一道化学题(有关酸碱滴定)已知常温常压下,饱和CO2的水溶液的pH=3.9,则可推断用标准盐酸溶液滴定NaHCO3水溶液时,适宜选用的指示剂是【甲基橙】,滴定终点时颜色变化为【由黄变橙】.我知
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/19 09:16:24
![一道化学题(有关酸碱滴定)已知常温常压下,饱和CO2的水溶液的pH=3.9,则可推断用标准盐酸溶液滴定NaHCO3水溶液时,适宜选用的指示剂是【甲基橙】,滴定终点时颜色变化为【由黄变橙】.我知](/uploads/image/z/4822104-48-4.jpg?t=%E4%B8%80%E9%81%93%E5%8C%96%E5%AD%A6%E9%A2%98%EF%BC%88%E6%9C%89%E5%85%B3%E9%85%B8%E7%A2%B1%E6%BB%B4%E5%AE%9A%EF%BC%89%E5%B7%B2%E7%9F%A5%E5%B8%B8%E6%B8%A9%E5%B8%B8%E5%8E%8B%E4%B8%8B%2C%E9%A5%B1%E5%92%8CCO2%E7%9A%84%E6%B0%B4%E6%BA%B6%E6%B6%B2%E7%9A%84pH%3D3.9%2C%E5%88%99%E5%8F%AF%E6%8E%A8%E6%96%AD%E7%94%A8%E6%A0%87%E5%87%86%E7%9B%90%E9%85%B8%E6%BA%B6%E6%B6%B2%E6%BB%B4%E5%AE%9ANaHCO3%E6%B0%B4%E6%BA%B6%E6%B6%B2%E6%97%B6%2C%E9%80%82%E5%AE%9C%E9%80%89%E7%94%A8%E7%9A%84%E6%8C%87%E7%A4%BA%E5%89%82%E6%98%AF%E3%80%90%E7%94%B2%E5%9F%BA%E6%A9%99%E3%80%91%2C%E6%BB%B4%E5%AE%9A%E7%BB%88%E7%82%B9%E6%97%B6%E9%A2%9C%E8%89%B2%E5%8F%98%E5%8C%96%E4%B8%BA%E3%80%90%E7%94%B1%E9%BB%84%E5%8F%98%E6%A9%99%E3%80%91.%E6%88%91%E7%9F%A5)
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