题目

One day, the employees of a company in St Louis, MS returned from their lunch break and were greeted with a sign on the front door. The sign said: “Yesterday, the person who had stood in your way to success passed away. We invite you to join the funeral (葬礼) in the gym.”At first, everyone was sad to hear that one of their colleagues (同事) had died, but after a while, they started feeling curious about who this person might be.The excitement grew as they arrived at the gym to pay their last respects. Everyone wondered, “Who is this person who was in my way? Well, at least he’s no（5分）鸡蛋壳的主要成分是碳酸钙．小明同学为了测定鸡蛋壳中碳酸钙的质量分数，分别设计了如下实验并进行计算．将鸡蛋壳洗净、干燥并捣碎后放入锥形瓶里，加入足量的稀盐酸充分反应（假设其他杂质不与盐酸反应）．测得相关数据如图所示：【数据处理】（1）反应生成二氧化碳的质量为 g．（2）请帮小明计算鸡蛋壳中碳酸钙的质量分数，并写出计算过程：实验过程如果有部分生成的二氧化碳气体因溶解于水而没有全部逸出，造成计算结果与实际值相比 （填“偏大”、“偏小”或“不变”）