Question

In today's exp today's experiment you determine that you collected 1.33 X 10 mols of oxygen Calculate (show your setup for the conversion!) how many mols of H,O, were in your hydrogen peroxide solution. Note: te: Tou will need a conversion factor from the equation you balanced in question 2. mols of H,O2 Based on your answer above, how many grams of H.O, were in the hydrogen peroxide solution? (HO, has a molecular weight of 34.0 g/mol) grams of H,02 5. Assume the grams of H,O, calculated in question 4 were found in a 6.00 gram sample of a hydrogen peroxide solution. Calculate the mass percent H,O, in the solution. %H,02 PRELAB .217

Answer 1

Asteble Answer 3. AS 2 H₂ O₂ → 2H2O + O2 no. of moles of oxygen = 1.33x10 mots. As for the equation! amole of H₂ Oz produce Imole of O₂. - number of moles of H₂O₂ & 1. 33x10 x 2 mole = 2.668 10 moles. of H₂O₂ 4 Grams of He O2 = no. of moles of H₂O₂ X Moleculer weight 2/2.66810 3 x 34.0 molx g og H2O, = 0.89 5 0.09044 gram of H₂O2 found in 6.00g sample of H₂O₂ solution. Masspercent of H₂ O₂ in solution = 0.09044 lasspercent of 20th solution = 0.09 0444 x 100% Mass percent of H₂O2 in solution = 1.507%