Inorganic Chemistry Answers

mass of a proton is

An automobile engine provides 567 Joules of work to push the pistons and generates 2357 Joules of heat that must be carried away by the cooling system.

Calculate the change in the internal energy of the engine.

 E = 

 Joules

A gas contain in a flask of 500ml capacity was allowed to expand into another flask of volume 600ml connecting through a valve and at the same temperature,if the final pressure of the gas is 1.01×10^5pa,When the valve is open,what was the pressure of the gas in the 500mmgh?The volume of the flask is negligible.

By referring to the chemical equation given, calculate the volume of nitrogen gas in litres, required to react with 40.0 g of magnesium at a pressure of 2.25 atm and a temperature of 15 °C.

            3Mg (s) + N₂ → Mg₃N₂ (s)

A gas is initially at volume 40.0 L, pressure 600 mmHg and temperature 35 °C. Calculate the final pressure of the gas in atm if the volume and temperature are changed to 2500 mL and 225 K, respectively.

An oxide of the chromium is made up of 5.20 g chromium and 5.60 g oxygen. what is the empirical formula of the oxide?(note: an oxide of chromium contains 63.1% oxygen and has a molar mass of 76.0g/mol.

for the complex Aqua-(N,N'-ethylenebis(salicylideneaminato-N,O))-oxo-vanadium(v) nitrate hydrate determine the items listed below. 

1. the MLXZ classification
2. the equivalent neutral classification (ENC)
3. the ligand bond number (LBN) 
4. the valence number (VN) 
5. the metal dn count
6. the total electron count (TEC)