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in Basic Concepts of Chemistry by (48.1k points)

What do you understand by standard temperature and pressure?

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The standard temperature is 273.15 K (0° Celsius or 32° Fahrenheit) and the standard pressure is 1 atm pressure or 760 mm. This is the freezing point of pure water at sea level atmospheric pressure. At STP, one mole of gas occupies 22.4 L of volume (molar volume).

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