what is the concentration of commercially H2 O2
Answers
H2O2 Equivalent Values of Concentration
Wt. % Mole Fraction Molarity g.mole / L solution at 25 °C Molality g.mole / Kg solvent Volume Stength Average Molecular Weight
0 0.0000 0.000 0.000 0.00 18.02
10 0.0556 3.034 3.266 34.03 18.90
20 0.1169 6.286 7.349 71.21 19.88
30 0.1850 9.770 12.599 110.96 20.98
40 0.2610 13.505 19.599 153.68 22.19
50 0.3462 17.511 29.398 199.49 23.55
60 0.4427 21.809 44.097 248.66 25.10
70 0.5527 26.421 68.595 301.46 26.86
80 0.6793 31.373 117.590 358.17 28.88
90 0.8266 36.692 264.580 419.16 31.24
100 1.0000 42.404 484.62 34.02
Volume strength (or volume percent) is an outdated term referring to the volume of oxygen gas liberated from one volume of H2O2 solution (at 0°C and 1 atm.).
Mole fraction calculated from: Xh = WMw / (Mh (100 - W) + WMw)
Where:
Mw = molecular weight of water (18.016)
Mh = molecular weight of H2O2 (34.016)
W = weight % of H2O2
Xh = mole fraction of H2O2
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