If sufficient acid is used to react completely with 3.78 grams of zinc, what volume of hydrogen would be produced at STP? The average kinetic energy of ideal gas molecules is directly proportional to the ________. What is the molarity of 600. mL of solution containing 6.72 grams of sulfuric acid? How much heat is required to raise the temperature of a 6.21 g sample of iron (specific heat = 0.450 J/(gC)) from 25.0C to 79.8C? A mixture of gases containing 21.0 g of N2 , 106.5 g of Cl2 , and 12.0 g of He at 14C is in a 50.0-L container. Calculate H at 25C for the reaction below. Which one of the following is a weak acid?