h2o2 is a colorless liquid.a concentrated solution of it is used as a source of oxygen for rocket propellent fuels.dilute aqueous solutions are used as bleach.analysis of solution shows that it contains 0.909 mol h2o2 in 1.00l of solution, what is the mass of h2o2 in this volume of solution?
2007-07-10 13:20:04 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
H2O2 (hydrogen peroxide) weighs 34.0147 grams/mole. So 0.909 moles is 0.909 x 34.0147 = 30.919 grams.
2007-07-10 13:31:11 · answer #1 · answered by Dr. Stu 2 · 0⤊ 0⤋
you know that---
no. of moles = mass / molar mass
from question put values:
0.909 = mass / 34 (H2O2 = 2+32 =34)
mass = 0.909 * 34 = 30.906 g (answer)
2007-07-10 13:42:58 · answer #2 · answered by sillu s 2 · 0⤊ 0⤋
just multiply 0.909 moles by the molar mass of H2O2 (34.0 g/mol) and you've got it.
2007-07-10 13:31:43 · answer #3 · answered by hcbiochem 7 · 0⤊ 0⤋