Question 2
(a) State the law of conservation of mass. Describe its experimental verification.
(b) 6 dm of dry gas is collected at a temperature of 28°C and pressure of 600 mm Hg. Find the volume
of the gas at STP.
(C) Hydrogen gas occupies a volume of 400 cm3 at a temperature of 27°C and normal atmospheric pres-
sure. Find the volume of the gas at 10°C at constant pressure.
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a) Law of conservation of mass: It states that mass can neither be created nor destroyed in a chemical reaction. ... During any change, physical or chemical, matter is neither created nor destroyed. However it may change from one form to another.
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