Substitute the equilibrium concentrations into the equilibrium-constant. expression and solve for x: If you have an equation- solving calculator, you can solve this equation directly for x. If not, expand this expression to obtain a quadratic in x: Thus, solving the quadratic equation leads to two solutions for x: x = Kc = [HI]² (2x)² [H₂][1₂] (1.000 - x)(2.000 - x) X = = 4x² 46.5x2 – 151.5x + 101.0 0 = For a general quadratic equation of the form: ax² + bx + c = 0 The solution takes the form (two roots): -b ± √b²-4(a)(c) 50.5(x² - 3.000x + 2.000) 2a -(-151.5) + V1(-151.5)² - 4(46.5)(101.0) 2(46.5) Substitute x = 2.323 into the expressions for the equilibrium concentrations of H₂ and 12. Reject negative solutions or concentrations. THUS: use x = 0.935 to find the equilibrium concentrations: = 50.5 - 2.323 or 0.935 [H₂] = 1.000 x = 0.065 M [1₂] = 2.000- x = 1.065 M [HI] = 2x = 1.87 M A 1.000-L flask is filled with 1.000 mol of H₂ and 2.000 mol of 12 at 448 °C. The value of the equilibrium constant K, for the reaction: H₂(g) + 12(g) = 2 HI(g) C at 448 °C is 50.5. What are the equilibrium concentrations of H₂, 12₂, and HI in moles per liter? Solution Plan: In this case, we are not given any of the equilibrium concentrations. We must form relationships that relate the initial concentrations to those at equilibrium. The procedure is similar to that previously outlined, we just have less initial information. First, we note the initial concentrations of H₂ and 12 in the 1.000-L flask: Second, we construct a table in which we tabulate the initial concentrations: [H₂] = 1.000 M and [1₂] = 2.000 M H₂(g) Initial Change Equilibrium 1.000 M + 12(8) 2.000 M 2 HI(g) OM

So Please don't provide the handwriting solution

Please don't provide handwritten solution .....

Read the descriptions below of two substances and an experiment on each. Decide whether the result of the experiment tells you the substance is a pure substance or a mixture, if you can. . Sample A is 100. g of a coarse grey powder with a faint unpleasant smell. 15. g of the powder is put into a funnel lined with a sheet of thick paper. Distilled water is poured slowly over the powder. All of the powder disappears, and the water under the funnel turns a deep purple. . Sample B is 100. mL of a clear liquid. The density of the liquid is measured, and turns out to be 0.77 g/mL. The liquid is then cooled in the refrigerator At 10.0 °C crystals begin to appear. The temperature of the liquid continues to decrease as more crystals form, until at 6.2 °C the liquid is entirely solid. Is sample A made from a pure substance or a mixture? If the description of the substance and the outcome of the experiment isn't enough to decide, choose "can't decide." Is sample B made from a pure substance or a…

Liquid hexane (CH3(CH2)4 CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O). Suppose 72. g of hexane is mixed with 169. g of oxygen. Calculate the minimum mass of hexane that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits

The speed of light is (2.998e8m/s) How far does light travel in 4.0μs? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols.

A chemical engineer must report the average volume of a certain pollutant produced by the plants under her supervision. Here are the data she has been given by each plant: plant volume of pollutant Cross Creek 0.590 L 29.07 L 7.032 L Pitt Doheny What average volume should the chemical engineer report? Be sure your answer has the correct number of significant digits. L x10 ? A ol.

write in standard notation     3.284 x 10^2                                  9.20 x 10^-5

The radius of a potassium atom is 231 pm. How many potassium atoms would have to be laid side by side to span a distance of 4.87 mm? atoms

The world population is estimated to be 7.4 x 109. Nauru is the smallest island nation and comprises 1.5 x 10-4% of the world population. If the percentage of left-handed people is approximately 12%, estimate the number of left-handers on the island of Nauru.