Calculate the percent by mass of oxygen in each of the following compounds: (a) Fe2O3 (b) Al2O3A commercial mouthwash contains 4.5 g of ethanol and 0.022g antiseptic in each 30.-mL portion. Calculate the w/v percent concentration of each component.How many mL of ethanol are contained in a 30.-mL portion of mouthwash that has 8.5%(v/v) of ethanol?A cough medicine contains 0.22% (w/v) dextromethorphan, a cough suppressant , and 2.2% (w/v) guaifenesin, an expectorant. How many mg of each drug would you obtain from 3.0 tsp of cough syrup? (1 tsp = 5 ml)

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Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter7: Solutions And Colloids

Section: Chapter Questions

Problem 7.35E

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Calculate the percent by mass of oxygen in each of the following compounds: (a) Fe₂O₃ (b) Al₂O₃
A commercial mouthwash contains 4.5 g of ethanol and 0.022g antiseptic in each 30.-mL portion. Calculate the w/v percent concentration of each component.
How many mL of ethanol are contained in a 30.-mL portion of mouthwash that has 8.5%(v/v) of ethanol?
A cough medicine contains 0.22% (w/v) dextromethorphan, a cough suppressant , and 2.2% (w/v) guaifenesin, an expectorant. How many mg of each drug would you obtain from 3.0 tsp of cough syrup? (1 tsp = 5 ml)

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