Respuesta :

adebanjomichael44

Answer:

5.76g

Explanation:

2H2 + O2 => 2H2O

Molar mass of H2O = 18g/Mol

No of mole of H2O = 6.42/18 = 0.36 moles of water.

1 mole of O2 gives 2 moles of water.

Xmole of O2 gives 0.36 moles of water.

X = 0.36/2 = 0.18 mole

Molar mass of O2 = 32g/mol

Mass = 32 × 0.18 = 5.76g.

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