Im redoing this homework for Chemistry and I need these problems. I need the ful
ID: 619770 • Letter: I
Question
Im redoing this homework for Chemistry and I need these problems. I need the full explanation of what you did and how you worked it out please. We usually do dimensional analysis. But if you explain thoroughly that would be great. Please, someone save me. 12. Determine the limiting reactant in each of the following reactions. Circle (Just label) the formula for the limiting reactant in each problem. Write the balanced equation and show all of your work. a. 3.50 mol of zinc reacts with 4.25 mol of silver nitrate. b. 10.6 mol of chlorine is added to 12.5 mol of potassium Iodide. 13. How many pounds of carbon dioxide are given off when one gallon of gasoline is burned in a combustion reaction? Gasoline can be written C8H18. One gallon of gasoline has a mass of 2661g (454.54g = 1 lb) 14. Show all of your work for each of the following problems. An aluminum nail of mass 5.00g is immersed into a solution of copper(II)nitrate. The mass of copper(II)nitrate in the solution is 6.50g. a. Write the balanced chemical equation for the reaction. b. What is the limiting reactant? c. How many grams of elemental copper can be produced from the reaction? d. How many grams of excess reactant remains when the limiting reactant is consumed? e. What is the % yield if 1.95g of copper is produced from the reaction in the lab?Explanation / Answer
a) Zn + 2Ag(NO)3---> 2Ag + Zn(NO)3 here silver nitrate is limiting reagent since 3.5 moles Zn require 7 mole Ag(NO3) but we have only 4.25 moles AG(NO3) b) Cl2 +2 KI ---> 2KCl + I2 here potassium iodide is limiting reagent , since 10.6 moles Cl2 requires 21.2 moles KI but we have only 12.5 moles KI limiting reagent is reagent which is present in less moles in reaction than required for complete reaction of all reactansts.