# A pycnometer is a precisely weighted vessel that is used for highly accurate density determinations. Suppose that a pycnometer has a mass of 27.60 g when it is empty and has a mass of 45.65 g when it is completely filled with water at 20 °C. A 9.5 g metal ingot is placed in the pycnometer. When it is then filled with water at 20 °C, the total mass is 56.83 g. If the density of water at 20 °C is 998.2 kg/m3, what is the density of the metal ingot in grams per cubic centimeter.

###### Question:

A pycnometer is a precisely weighted vessel that is used for highly accurate density determinations. Suppose that a pycnometer has a mass of 27.60 g when it is empty and has a mass of 45.65 g when it is completely filled with water at 20 °C. A 9.5 g metal ingot is placed in the pycnometer. When it is then filled with water at 20 °C, the total mass is 56.83 g. If the density of water at 20 °C is 998.2 kg/m3, what is the density of the metal ingot in grams per cubic centimeter.

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