化学实验

95个含分步说明的实验方案

所有类别 Flame Tests Titrations Electrochemistry Organic Synthesis Crystallization Gas Laws Thermochemistry Qualitative Analysis Colorimetry Classroom Demonstrations

所有级别 Beginner (Middle School) Intermediate (High School) Advanced (University) Professional (Lab)

实验查找器

难度	≤15 min	≤30 min	≤60 min	60+ min
Beginner (Middle School)	1	1	1	1
Intermediate (High School)	0	1	1	1
Advanced (University)	0	1	1	1
Professional (Lab)	0	0	0	1

点击格子按难度和时长筛选实验。

赫斯定律验证

用三个反应证明焓是状态函数

测量三个相关反应的焓变，证明ΔH1+ΔH2=ΔH3，从而验证赫斯定律。

Thermochemistry · Advanced (University) · 60 min · 7 步骤

镁的燃烧热

用赫斯定律和氧化镁测定ΔH

由于直接测量不可行，用赫斯定律间接测定镁的燃烧焓。

Thermochemistry · Advanced (University) · 50 min · 6 步骤