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Stoichiometry

According to Raoult’s law, “The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component.” Raoult’s law is not applicable under the following assumption/condition?

According to Raoult’s law, “The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component.” Raoult’s law is not applicable under the following assumption/condition?

A. No component is concentrated at the surface of the solution
B. The component molecules are non polar and are of almost equal size
C. In the formation of solution, chemical combination/molecular association between unlike
molecules takes place

D. The attractive forces between like and unlike molecules are almost equal

According to Raoult’s law, “The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component.” Raoult’s law is not applicable under the following assumption/condition? Read More »

Stoichiometry

The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be______________?

The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be______________?

A. Basic
B. More acidic
C. Neutral
D. Of the same acidity

The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be______________? Read More »

Stoichiometry

The equilibria relations in a multi-component and multiphase system cannot be calculated with the help of the_______________?

The equilibria relations in a multi-component and multiphase system cannot be calculated with the help of the_______________?

A. Phase rule
B. Experimental data
C. Empirical equations
D. Theoretical equations

The equilibria relations in a multi-component and multiphase system cannot be calculated with the help of the_______________? Read More »

Stoichiometry