“在测定碳酸钠晶体中结晶水含量的实验中，样品中若混有少量小苏打，对实验结果有何影响”．这是中学化学中典型的实验误差分析问题，最普遍的说法是使测得的结晶水含量偏大，题后所附的答案也是这样说．但笔者认为，碳酸钠晶体中混有小苏打，对实验结果的影响，与碳酸钠晶体 “In the experiment of determining the crystal water content in sodium carbonate crystals, if a small amount of baking soda is mixed in the sample, it will have an impact on the experimental results.” This is a typical experimental error analysis problem in middle school chemistry. The most common argument is to make the measured crystal water content large, and the answer attached to the question is the same. But I believe that sodium carbonate crystals mixed with baking soda, the impact of the experimental results, and sodium carbonate crystals