# Math Help - Stoichiometry question

1. ## Stoichiometry question

A certain mass of zinc nitrate was heated completely in a fume cupboard . The nitrogen dioxide liberated was allowed to completely dissolve in $150cm^3$ of distilled water to produce a solution of nitric(3) acid and nitric(5) acid of equal concentration , $0.133moldm^{-3}$
Calculate the mass of zinc nitrate used .

Thanks .

2. Originally Posted by thereddevils
A certain mass of zinc nitrate was heated completely in a fume cupboard . The nitrogen dioxide liberated was allowed to completely dissolve in $150cm^3$ of distilled water to produce a solution of nitric(3) acid and nitric(5) acid of equal concentration , $0.133moldm^{-3}$
Calculate the mass of zinc nitrate used .

Thanks .
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