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Topic: Basic Chemistry


Normal Temperature and Pressure (NTP)

Normal temperature is 20 ℃ or 293.15 K or 68 ℉.

Normal pressure is 1 atm or 101.325 kPa or 760 mmHg (or torr) or 14.6959 psi.

3 min read

Standard Temperature and Pressure (STP)

According to NIST, standard temperature is 0 ℃ or 273.15 K or 32 ℉, and standard pressure is 1 atm or 101.325 kPa or 760 mmHg (or torr) or 14.6959 psi.
8 min read

Chemistry and Its Branches

Chemistry is a branch of science which deals with the study of matter composed of atoms and molecules, their properties, composition, structure, behaviour, and interactions among constituents of matter. Modern chemistry can be categories into five main branches: Physical chemistry, Analytical chemistry, Inorganic chemistry, Organic chemistry, and Biochemistry.
17 min read

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