Upon combustion, about how many grams of water vapor are produced from every 16 grams of methane, ?
+ 2 → + 2 O

Question

Upon combustion, about how many grams of water vapor are produced from every 16 grams of methane,  ? 
 + 2  →  + 2  O

Quizplus · Accepted Answer

According to the balanced equation, for every 16 grams of methane, 2 moles of water are produced. The molar mass of water is 18 g/mol (2x 1.008 g/mol + 15.999 g/mol). Therefore, 2 moles of water weigh 36 grams. So, for every 16 grams of methane, 36 grams of water vapor are produced upon combustion.

Upon Combustion, About How Many Grams of Water Vapor Are