Written Assignment 6: Gases Written Assignment 6: Gases Answer all assigned questions and problems, and show all work. 1. A gas occupying a volume of 725 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume? (5 points) (Reference: Chang […]
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Written Assignment 5: Chemical Reactions In Solution Written Assignment 5: Chemical Reactions in Solution Answer all assigned questions and problems, and show all work. 1. Define electrolyte and nonelectrolyte and identify each of the following substances as a strong electrolyte, weak electrolyte, or nonelectrolyte: (5 points)(Reference: Chang 4.9) 2. Write ionic and net ionic equations
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Written Assignment 3: Mass Relationships For Compounds Written Assignment 3: Mass Relationships for Compounds Answer all assigned questions and problems, and show all work. 1. How many atoms are there in 5.10 moles of sulfur (S)? (6 points)(Reference: Chang 3.13) 2. How many moles of calcium (Ca) atoms are there in 77.4 g of Ca?
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Escience: Gravimetric Analysis pre-lab Questions 1. Write a balanced equation for the precipitation of calcium carbonate from potassium carbonate and calcium chloride. 2. Using this balanced equation, determine the limiting reactant if 15 grams of calcium chloride was reacted with 15 grams of potassium carbonate. experiment 1: gravimetric analysis with calcium chloride and potassium carbonate
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