The equation 6HNO3 + 2PbS -> 4NO2 + 2H2O + 2Pb(NO3)2 + 2S

  1. Detailed information about the equation 6HNO3 + 2PbS -> 4NO2 + 2H2O + 2Pb(NO3)2 + 2S

    The equation shows that six moles of nitric acid (HNO3) react with two moles of lead sulfide (PbS) to produce four moles of nitrogen dioxide (NO2), two moles of water (H2O), two moles of lead nitrate (Pb(NO3)2), and two moles of sulfur (S).

  2. Reaction conditions

    This reaction occurs when nitric acid reacts with lead sulfide. Appropriate temperature and light are needed for the reaction to take place.

  3. Reaction process

    In the reaction process, HNO3 containing NO3- nitrate reacts with PbS to form Pb(NO3)2 and sulfur. HNO3 also produces water and NO2 in this process.

  4. Occurrences

    During the reaction, the color may change from the color of PbS and HNO3 to the color of Pb(NO3)2 and NO2. If the reaction takes place in the air, there may be a distinctive smell of NO2, a reddish-brown gas. In addition, heat may be released during the reaction, causing the reaction mixture to heat up.

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