CHEM 6B Lecture 3: 1-17-17 lecture notes 3
19 Jan 2017
School
Department
Course
Professor
Document Summary
A 30. 45 mg sample of a chemical known to contain only carbon, hydrogen, oxygen and sulfur is put into a combustion analysis apparatus yielding 54. 246 mg co2 and 22. 206 mg of h2o. In another experiment, 23. 725 mg of the compound is reacted with excess oxygen to produce 255 mg of sulfur dioxide. It"s possible that the reaction is not complete if we get less than expected from the products. In a given reaction, there is not enough of one reagent to use up the other reagent completely. The reagent in short supply limits the quantity of product that can be formed. Solid zinc is reacted with 0. 100 mol hcl to form zinc chloride and hydrogen gas. What is the limiting reactant when there is 7. 00 g zn. When 24. 0 g of potassium nitrate was heated with 62. 2 g solid lead, 13. 8 g of potassium nitrate was formed along with solid lead (ii) oxide.
