Inorganic Chemistry Answers

14. A NC Coastal Plain organic soil has a pH of 4.5 and a CEC = 30 meq/100g. What lime rate would you recommend?  A dealer sells 80% CCE lime with the following characteristics: 50% < 60 mesh; 30% < 8-60 mesh; 20% > 8 mesh. How much lime material would you apply? Use pH-BS diagram below and show all work.

11. A golf course manager has a golf green that is thinning. A soil test indicates that the following:

CEC = 4 meq/100g            800 ppm Ca (soil)

pH = 8.4                                 48 ppm Mg (soil)

EC = 8 mmhos/cm             78 ppm K (soil)

                                                230 ppm Na (soil)

What would you recommend (lbs/1000ft²)? Show all calculations

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)