Finally, on January 28, 2014, in Germany, a barn containing 90 cows
exploded when a stray spark caught the methane trapped in the
building on fire. The building was damaged and one cow was slightly
injured with minor burns. Assume that the 90 cows were producing
250 L of methane per day and that there was a 15 hour collection in
the barn when it ignited. What mass of water was generated in the
explosion?