contestada

MM H2O2 = 34.02 g/mol MM H2O = 18.02 g/mol MM O2 = 32 g/mol

2H2O2 —> 2H2O + O2

If 14.3 moles of H2O2 is decomposed, how many grams of oxygen has are produced? Show ALL your work to get full credit.

(PLEASE HELP QUICKLY!!!)

Respuesta :

kenmyna

  The grams   of oxygen that  are   produced  is  228.8 grams


  calculation

2H₂O₂ → 2H₂O +O₂

Step 1:  use  the  mole ratio to determine the moles of O₂

from equation above H₂O₂:O₂  is   2:1

therefore the  moles of O₂  = 14.3 moles ×1/2 = 7.15   moles

Step 2:  find  mass   of O₂

mass = moles ×  molar mass

= 7.15 moles × 32 g/mol =228.8 g

Otras preguntas