ICSE Class 10: Mole Concept Videos | Concentration of solution

• calculate the volume of oxygen required for the complete combustion of 8.8g of propane
• What will be the mass. ??
  
• How to calculate Emphirical formula and Molecular formula? thanks.
• In Chemistry, in a given reaction , how to recognize which reaction it is  i.e oxidation,reduction or redox reaction?
• b) one ..
  
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• Find the volume of oxygen at STP required for the complete combustion of 2 litres of carbon monoxide at S.T.P.  
• why mole concept important
• A mixture of hydrogen and chlorine occupying 36 cm³ was exploded. On shaking it with water, 4cm³ of hydrogen was left behind. Find the composition of the mixture.
• What volume of oxygen at STP is required to affect the combustion of 11 litres of ethylene [C₂H₄] at 273^o C and 380 mm of Hg pressure?                         C₂H₄+3O₂2CO₂ + 2H₂O

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