State the law of conservation of mass.

Discussion in 'CBSE Class 9 Chemistry Help' started by Vinila Choudary, Jan 27, 2012.

  1. Vinila Choudary

    Vinila Choudary Active Member

    2.8 g of nitrogen gas was allowed to react with 0.6 g of hydrogen gas to produce 3.4 g of ammonia. Show that these observations are in agreement with the law of conservation of mass. State the law of conservation of mass.

    Nitrogen + Hydrogen --------------- > Ammonia

    Mass of reactants before experiment = Mass of nitrogen + mass of hydrogen

    = 2.8 g + 0.6 g = 3.4 g

    Mass of product after experiment = 3.4 g of ammonia As the mass of reactants (3.4 g) is equal to the mass of product (3.4 g), therefore, these masses are in agreement with the law of conservation of mass.

    According to this law of conservation of mass “mass can neither be created nor can it be destroyed in a chemical reaction”.
  2. cbselabs

    cbselabs Administrator Staff Member

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