Reasonable Answer Check:Slicing open French bread we see that it has a vast “honeycomb” of bubble-shaped spaces in it. It makes sense that approximately half the loaf’s volume can be associated with the CO2bubbles formed by the yeast when the bread was rising. 40. Answer: 21 mm Hg Strategy and Explanation: Given the balanced chemical equation for a chemical reaction, the mass of one reactant, and excess other reactant, determine the pressure of the product produced at a specified volume and temperature. Convert from grams to moles. Use the stoichiometric relationship from the balanced equation to determine moles of product. Use the ideal gas law to determine the pressure of the product.