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Q. Iron chloride forms various solid hydrates, all of which melt congruently. The temperatures t of aqueous solutions of various compositions that are saturated with respect to a solid phase.
(a) Use these data to construct a t-zB phase diagram for the binary system of FeCl3 (A) and H2O (B). Identify the formula and melting point of each hydrate.
Hint: derive a formula for the mole ratio nB = nA as a function of xA in a binary mixture.
(b) For the following conditions, determine the phase or phases present at equilibrium and the composition of each.
1. t = 70.0C and zA = 0.100
2. t = 50.0C and zA = 0.275
0.205g of a metal on treatment with dilute acid gave 106.6ml of hydrogen collected over water at 755mm pressure and 17 degree Celsius. calculate the equivalent mass of the metal. (
Q. What are the Chemical Properties of Ammonia? Ans. Combustion: Ammonia does not burn in air but will burn in pure oxygen to form nitrogen and water vapor. 4NH 3 (g) +
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