Need Help Chemistry?

Posted on 2014-11-15 08:13:00 in Chemistry by BISHT

1. The volume strength of 3% solution w/v of H2O2(Hydrogen Peroxide) is?

2. 30g of KMnO4 sample containing inert impurity completely reacted with 60 ml of 56 volume of H2O2 in acidic medium, then what is the percentage purity of KMNO4?

3. The sample of Sulphuric acid is 49% by mass, 100 ml of Iit titration with 12 N(Normal) NaOH required 50ml of NaOH solution. The density of sulphuric acid is?

Help me out to solve this. Answer any of them if you can solve this. I have test tomorrow. Help me out and Thanks

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