In a research, it has been found that millions of bottled mineral waters contain benzene (C6H6) at molarity levels higher than concentrations considered lethal for rats. A sample of a 250 mL mineral water has a concentration of 0.000151 M. What is the mass of benzene in the sample?Brine is a preservative for vegetables, fish, fruit, and meat. It prevents the growth of bacteria. What is the concentration in ppm of the solution made by dissolving 2.5 g of NaCl in enough water to make mL of brine solution?Theobromine is a bitter alkaloid of cacao plant. It is found in chocolate, leaves of the tea plant, and cola nut. How many grams of theobromine (C7H8N4O2) should be dissolved in 373 g water to make 3.75 m theobromine solution?How many grams of table sugar (C12H22O11) must be added to 200 g H2O to raise the boiling point of water from 100 °C to 102 °C?

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Answered: contain benzene (C6H6) at molarity…

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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In a research, it has been found that millions of bottled mineral waters contain benzene (C6H6) at molarity levels higher than concentrations considered lethal for rats. A sample of a 250 mL mineral water has a concentration of 0.000151 M. What is the mass of benzene in the sample?
Brine is a preservative for vegetables, fish, fruit, and meat. It prevents the growth of bacteria. What is the concentration in ppm of the solution made by dissolving 2.5 g of NaCl in enough water to make mL of brine solution?
Theobromine is a bitter alkaloid of cacao plant. It is found in chocolate, leaves of the tea plant, and cola nut. How many grams of theobromine (C7H8N4O2) should be dissolved in 373 g water to make 3.75 m theobromine solution?
How many grams of table sugar (C12H22O11) must be added to 200 g H2O to raise the boiling point of water from 100 °C to 102 °C?

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