Grade 12Inorganic Chemistry
WHAT IS THE NORMALITY AND MORALITY IF 24.54 ml og KMnO4 WAS STANDARDIZED AGAINSY 0.1678 g As2O3
WHAT IS THE NORMALITY AND MORALITY IF 24.54 ml og KMnO4 WAS STANDARDIZED AGAINSY 0.1678 g As2O3
1 Answer
Arun
Molarity=moles/volume
Moles KMnO4=moles As2O3*(4 moles MnO4-/5 moles As2O3)
Moles As2O3=0.1678/197.8414
Divide given mass by molar mass.
Moles As2O3=0.0008486 moles
Moles MnO4-=0.0008486*(4/5)
Moles MnO4-=0.0006788
Molarity KMnO4=0.0006788 moles/0.02454 L or 0.0276 M
Regards
Arun (askIITians forum expert)
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