Respuesta :

gradman555p98x9p

First lets calculate the moles of aluminum (molar mass is 27 gram/mol):

n = m/M = 14.9 / 27 = 0.551 mole of Al


According to the reaction between sulfuric acid and aluminum:

From 2 moles of aluminum ==> we get 3 moles of Hydrogen gas

so, let's do cross multiplication

0.551 ==> 0.551 * 3/2 = 0.83 mole of H2


So, from this reaction we got 0.83 mole of H2 gas

knowing that the molar mass of H2 is 2 gram/mol, the mass of the gas is.

m = n * M = 0.83 * 2 = 1.66 gram of H2


pstnonsonjoku

The stoichiometry of the reaction can be used to obtain the mass of hydrogen.

What is stoichiometry?

The term stoichiometry has to do with the mass- mole or mass - volume relationship in a chemical reaction. This question is incomplete hence we can not obtain the value of the mass of hydrogen gas produced.

However, if we have the balanced reaction equation, we can use it along with other data provided in the question to obtain the mass of te hydrogen produced.

Learn more about stoichiometry: https://brainly.com/question/867804

Otras preguntas