Question 5. Circle the best answer for part a) and provide a number for part b). a) You work as a summer student in a lab to help a professor in her research. One day she left on your bench a small vial containing 8 g of a new antibiotic powder and a note asking you to prepare 20 ml of a 1M solution while she attends a Faculty meeting (use water to make the solution, and by the way, the molecular weight of the antibiotic is 400 g/mol, she wrote). When the professor comes back from the meeting: A You give your solution to the professor and thank her for having calculated the exact amount of powder needed. (but you think that she could have told you that B You return the leftover 2 g to the professor together with the solution. C You tell her that there is not enough powder and you need 2 g more to prepare this solution. b) if you used 0.5g of that antibiotic powder to make 20 ml of solution, what is the % concentration of this solution?

Question 5. Circle the best answer for part a) and provide a number for part b). a) You work as a summer student in a lab to help a professor in her research. One day she left on your bench a small vial containing 8 g of a new antibiotic powder and a note asking you to prepare 20 ml of a 1M solution while she attends a Faculty meeting (use water to make the solution, and by the way, the molecular weight of the antibiotic is 400 g/mol, she wrote). When the professor comes back from the meeting: A You give your solution to the professor and thank her for having calculated the exact amount of powder needed. (but you think that she could have told you that B You return the leftover 2 g to the professor together with the solution. C You tell her that there is not enough powder and you need 2 g more to prepare this solution. b) if you used 0.5g of that antibiotic powder to make 20 ml of solution, what is the % concentration of this solution?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 16QRT

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