Friday, August 18, 2017

Chemistry homework of XI


1.Calculate the no. of carbon atom and oxygen molecule in 20 g of CaCO3.
2.The cost of table sugar ( C6H12O6) is Rs 85 per kg. Calculate the cost of 1.5 moles of sugar.
3.Calculate the amount of mass in 2.24 litre of CO2 gas at NTP. How many no. of molecules are present in it ?
4.Explain the manufacture of ammonia by Haber' s process.
5.Distinguish between pyrometallurgy and Electrometallurgy
6.State and explain Charle's  law.
7.Define absolute zero and absolute scale of temperature

To be submitted on given time

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