Complete your work of the 2 problems below on a sheet of paper and submit an image. I. Lead ions can be precipitated fro
Posted: Sat Jul 02, 2022 7:49 pm
Complete your work of the 2 problems below on a sheet of paperand submit an image.
I. Lead ions can be precipitated from aqueous solutions by theaddition of aqueous iodide. Below is an unbalanced net ionicequation of the reaction: Pb2+ (aq) + I-1 (aq) → PbI2 (s)
Lead iodide is virtually insoluble in water so that the reactionappears to go to completion. How many milliliters of 13.550 MHI(aq) must be added to a solution containing 145.0 g of Pb(NO3)2(aq) to completely precipitate the lead?
II. Pure magnesium metal is often found as ribbons and caneasily burn in the presence of oxygen. When 3.6 g of magnesiumribbon burns with 55HL of oxygen at 1.0 atm and 275 K , a bright,white light and a white, powdery product is formed, magnesiumoxide. How many grams of excess reactant remain?
I. Lead ions can be precipitated from aqueous solutions by theaddition of aqueous iodide. Below is an unbalanced net ionicequation of the reaction: Pb2+ (aq) + I-1 (aq) → PbI2 (s)
Lead iodide is virtually insoluble in water so that the reactionappears to go to completion. How many milliliters of 13.550 MHI(aq) must be added to a solution containing 145.0 g of Pb(NO3)2(aq) to completely precipitate the lead?
II. Pure magnesium metal is often found as ribbons and caneasily burn in the presence of oxygen. When 3.6 g of magnesiumribbon burns with 55HL of oxygen at 1.0 atm and 275 K , a bright,white light and a white, powdery product is formed, magnesiumoxide. How many grams of excess reactant remain?