Aluminum carbide, Al2C3 (s), reacts with water to yield aluminum hydroxide, Al(OH)3 (aq), and methane, CH4 (g). Write the equation for the reaction. How many grams of Al4C3 (s) would be needed to prepare 1.000 L of CH4 (g) measured at STP?

Answer 1

write, balance the equation.

one liter of the gas is 1/22.4 moles.

Now look at the mole ratio: how many moles of Al2C3 does it take? Change that to grams.