In the reaction h2so4 + 2 naoh -> na2so4 + 2h2o, an equivalence point occurs when 34.23 ml of 0.2392 m naoh is added to a 38.34 ml portion of h2so4. what is the [h2so4]?

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)