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A gas at 25°C exactly fills a container previously determined to have a volume of 1.05 × 103 cm3. The container plus gas are weighed and found to have a mass of 837.6 g. The container, when emptied of all gas, has a mass of 836.2 g. What is the density of the gas at 25°C?
Express your answer using two significant figures.

Sagot :

Eduard22sly

The density of the unknown liquid, given the data is 1.3×10⁻³ g/cm³

What is density?

The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as

Density = mass / volume

How to determine the density of the gas

From the question given, the following data were obtained:

  • Volume of gas = 1.05×10³ cm³
  • Mass of container + gas = 837.6 g
  • Mass of container = 836.2 g
  • Mass of gas = 837.6 - 836.2 = 1.4 g
  • Density of gas =?

Density = mass / volume

Density of gas = 1.4 / 1.05×10³

Density of gas = 1.3×10⁻³ g/cm³

Thus, the density of the gas is 1.3×10⁻³ g/cm³

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