Making lead(II) sulphate Adding a source of aqueous sulphate ions to a solution of lead(II) nitrate results in a white precipitate of lead(II) sulphate. The easiest thing to add is usually dilute sulphuric acid-but any other soluble sulphate would do.Making lead(II) iodide. If you add colourless potassium iodide solution (or any other source of iodide ions in solution) to a solution of lead(II) nitrate, a bright yellow precipitate of lead(II) iodide is produced.he easiest thing to add is usually dilute sulphuric acid-but any other soluble sulphate would do. Making lead(II) iodide. If you add colourless potassium iodide solution (or any other source of iodide ions in solution) to a solution of lead(II) nitrate, a bright yellow precipitate of lead(II) iodide is produced.
Other upcoming eclipses visible in St. Louis will be a partial lunar eclipse on April 4, 2015 and a total lunar eclipse on Sept. 27 and 28, 2015. The next solar eclipse visible for the St. Louis area will be a total solar eclipse on Aug. 21, 2017.
The Gateway Arch and Museum of Westward Expansion are located in downtown St. Louis on the Mississippi Riverfront. Both are open from daily 9 a.m. to 6 p.m., with expanded hours from 8 a.m. to 10 p.m. between Memorial Day and Labor Day. The Old Courthouse is open from 8 a.m. to 4:30 p.m. each day, except Thanksgiving, Christmas and New Yearâs Day. 1  Things To Do. Museum of Westward Expansion Under the Gateway Arch. 2  Things To Do. Visit These 15 Free Attractions in St. Louis. 3  Things To Do. Top 10 Tourist Attractions in St. Louis. 4  Things To Do.