Physical Chemistry Answers

Compound X contains only carbon , hydrogen and oxygen . A 0.2000 g sample of Compound X was burnt completely to yield 0.3906 g of CO2 and 0.200 g of H2O . Determine the empirical formula of Compound X .

gas has temp of 47C and pressure of 2.10⁵ pascal. What pressure would gas have after isochoric boiling it to 77C

Calculate threshold coagulation of 1 L Zn(OH)2 sol by 0.45 L of Al₂(SO4)3 solution with concentration C(1/6 Al2(SO4)3)= 0.02 mol/L.

Plants consume carbon dioxide gas as they produce sugar during photosynhesis

                       6CO2 +6H2O → C6H12O6 + 6O2

To produce 50g of sugar, C6H12O6  how many litres of  gas at SATP does a sugar beet need to consume? [T/I-7]

The density of a crystal depends on what

The reaction between solid white phosphorus and oxygen produces solid

tetraphosphorusdecoxide (P4010).

a. Write the balanced chemical equation of the reaction

b. Determine the mass of tetraphosphorusdecoxide (P4010) formed if 26.0 g of

phosphorus (Pd) and 49.5 g of oxygen (O2) are combined.

c. How much of the excess reactant remains after the reaction stops?

How much potassium iodide (166.00 g/mol) is required to get 1.78 g of 

mercury(I) iodide precipitate (454.39 g/mol). The unbalanced chemical equation is

What is meant by EMF of a cell? How is it measured.

Discuss different techniques for the determination of transition point.

What is the limiting reactant