The decomposition of hi(g) is represented by the equation 2hi(g)⇌h2(g) i2(g) the following experiment was devised to determine the equilibrium constant of the reaction. hi(g) is introduced into five identical 400-cm3 glass bulbs, and the five bulbs are maintained at 623 k. the amount of i2 produced over time is measured by opening each bulb and titrating the contents with 0.0150 m na2s2o3(aq). the reaction of i2 with the titrant is i2 2na2s2o3→na2s4o6 2nai

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

the temperature of the gas, in k, not celsius.