inesmatos inesmatos
  • 08-11-2022
  • Chemistry
contestada

Colocou 20 mL de HNO3 comercial a 70% (p/p) num balão volumétrico de 100 mL e aferiu com água destilada. Calcule a concentração da solução aquosa de ácido nítrico HNO3 preparada sabendo que a densidade de HNO3 a 70% é de 1,42. Diga qual o material que irá usar para preparar essa solução.

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