You have a metal with mass 15.32 g and a volumetric flask with water with mass 115.16 g. The mass of the volumetric flask with water and the metal is now 128.77 g. The empty volumetric flask had a mass of 65.03 g. What is the mass of the water displaced by the metal in grams? Report your answer to two decimal places and do not include units in your answer.

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.