Aluminum granules are a component of some drain cleaners because they react with sodium hydroxide to release both energy and gas bubbles to help clear the drain clog. The reaction is:
2NaOH + Al + 6H2O 2NaAl(OH)4 + 3H2
(note: balance the reaction first)
What mass of Aluminum would be needed to produce 4L of hydrogen gas at STP?
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Balanced Reaction : 2NaOH + 2Al + 6H2O ---> 2NaAl(OH)4 + 3H2 Same as above , V = Moles * Constant 4 = n * 22,4 n = 4/22,4 = 0.1786 Moles of Aluminium / Moles of Hidrogen = Coefficient of Aluminium / Coefficient of Hidrogen n / 0.1786 = 2 / 3 n = 0.119 Mole M = n*Mr = 0.119* 27 = 3,213 grams
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