Physical Chemistry Answers

draw a neat-labeled phase diagram of water system, and calculate degree of freedom of areas and curves in it. how many components are present in the following systems? fe(s) + h2o - feo(s) + h2 nacl(s) - nacl(aq)

in an experiment a solution of 0.148 mol/L aluminum sulfate is titrated with acidic chromium(ii) bromide solution

Methane, the main component of natural gas, burns as follows. Accordingly, how many kJ heat is released from the full combustion of 1.63x103L methane at 18.60C and 768mmHg pressure? Also, considering that this reaction occurs in 100% efficiency, how many liters of water can increase the temperature from 8.70C to 60.00C if used in heating?

74.8 g of copper at 143.20C is immersed in 165 mL of glycerin (C3H8O3, dglycerin = 1.26g / mL) at 24.80C in an insulated container. The final temperature is measured at 31.10C. Accordingly, what is the heat capacity of glycerine in the unit of J. mol-1.0C-1? (c copper = 0.385 J. mol-1.0C-1)

Use oxidation numbers to identify the OA and RA, and to balance the following equation in acidic conditions.

1. 74.8 g of copper at 143.20C is immersed in 165 mL of glycerin (C3H8O3, dglycerin = 1.26g / mL) at 24.80C in an insulated container. The final temperature is measured at 31.10C. Accordingly, what is the heat capacity of glycerine in the unit of J. mol-1.0C-1? (c copper = 0.385 J. mol-1.0C-1)

2. Methane, the main component of natural gas, burns as follows. Accordingly, how many kJ heat is released from the full combustion of 1.63x103L methane at 18.60C and 768mmHg pressure? Also, considering that this reaction occurs in 100% efficiency, how many liters of water can increase the temperature from 8.70C to 60.00C if used in heating?

3. Show how the enthalpy changes of the reactions below occur in accordance with the Hess Law, which formation steps occur, and what the

difine molecular refraction.briefly describe the principle construction and working of the instrument used in determinning the molecular refraction of a liquid.

The expression relating ΔH, ΔSand ΔGis an important one in all branches of chemical sciences. Write this expression down, and show how its formulation arises from a consideration of the Second Law ofThermodynamics.

How many moles of magnesium oxide is produced when 0.27 moles of oxygen gas reacts completely

Use oxidation numbers to identify the OA and RA, and to balance the following equation in acidic conditions.
NO_(3)^( -)(aq)+P_(4 )(s) ->H_(3)PO_(4)(aq)+NO_(2)(g)