Glass Density bottle with thermometer

A glass density bottle pycnometer with a thermometer is a laboratory instrument used to measure the density of a substance. It consists of a small glass bottle with a precise volume, typically equipped with a ground-glass stopper. The pycnometer is filled with the substance whose density is being measured, and the thermometer is inserted into the liquid. The temperature of the substance is recorded, allowing for accurate density calculations. By comparing the mass and volume of the substance, its density can be determined using the formula density = mass/volume.

帶溫度計的玻璃密度瓶溫度計是一種用於測量物質密度的實驗室儀器。它由一個容量精確的小玻璃瓶組成，通常配有一個磨碎的玻璃塞。密度計中裝入要測量密度的物質，然後將溫度計插入液體中。物質的溫度被記錄下來，從而可以進行精確的密度計算。通過比較物質的質量和體積，可以用公式密度 = 質量/體積來確定其密度。

Youtube Demo Video : https://www.youtube.com/watch?v=2TOKy4bW2js