How do I find out the mass of -LSB- math -RSB- H _ -LCB- 2 -RCB- O _ -LCB- 2 -RCB- -LSB- / math -RSB- such that oxygen produced from it will be sufficient to burn $ 20 $ g of coke ?
Is Prin LN wellingkar institute of managemant development and research good for the field media and entertainment ?