Oxygen →→→related chemistry?

1. Calculate the volume of oxygen at STP which could be obtained from 75cm^3 of hydrogen peroxide solution which has a concentration of 68 g/dm^3. 2.1 Describe what you guy can observe when hydrogen peroxide solution is mixed with an acidified solution of potassium manganate (VII) solution. 2.2 Write balanced... show more 1. Calculate the volume of oxygen at STP which could be obtained from 75cm^3 of hydrogen peroxide solution which has a concentration of 68 g/dm^3.

2.1 Describe what you guy can observe when hydrogen peroxide solution is mixed with an acidified solution of potassium manganate (VII) solution.

2.2 Write balanced ionic equation of this reaction.
I could give u [HINT=H2SO4 + MnO4^-]♥♥♥

If u are an expert and manage to answer this both I'll give you guy 5 ★

Thanks in advance##
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