Physical Chemistry Answers

Given the following data: ( ) ( ) ( ) ( ) 2 2 2 CO g H O g CO g H g + → + H ( C) o o  25 = -42.0 kJmol-1 Cp (CO) = 26.8 + 6 x 10-3T JK-1mol-1 Cp (H2O) = 30.1 + 10 x 10-3T JK-1mol-1 Cp (H2) = 28.5 + 2 x 10-3T JK-1mol-1 Cp (CO2) = 26.4 + 42 x 10-3T JK-1mol-1 where T is the thermodynamic temperature, calculate the change in enthalpy for the reaction at 1000 K

What is meant by alkalinity of water ? Explain the various condions involved in determining the nature of alkalinity. 

Describe the procedure involved in estimation of alkalinity of water sample

Explain the procedure about determination of the amount of FAS solution by titrating against standard KMnO4 in acidic medium

Describe the procedure and reactions involved in preparation of Iodoform from Ethanol. 

What is the molarity of the solution produced when 145 g of magnesium chloride is dissolved in sufficient water to prepare 2.75 L of solution with a density of 2300kg/m³? 

20 ml of a sample water on titration with N/50 H2SO4 required 9.6 ml of the acid to Phenolphthalein end point and 13 ml of the acid to Methyl orange end point. Determine the type and amount of alkalinity present in the water sample

100 ml of a sample water on titration with N/50 H2SO4 required 6.8 ml of the acid to Phenolphthalein end point and 13.6 ml of the acid to Methyl orange end point. Determine the type and amount of alkalinity present in the water sample

-log 1.6 • 0.000001