For an experiment you are measuring the decomposition rate of organic matter, You have a large amount of CH402 in a container filled with 3.024 L of water. You Created a saline environment by adding 2.4 g of sodium chloride, 3.6 g of calcium chloride, and 2.8 g of magnesium chloride before diluting, iron (III) oxide is available for the microbes to oxidize the matter into carbon dioxide by forming iron (II) aqueous ions. At the beginning of the experiment, you measure the pH using a probe to be 7.13. After 73 hours you measure the pH again and obtain 7.54. Assuming that the pH change is solely due to the oxidation of organic matter, what is the rate of organic matter decomposition in nanograms per hour?

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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For an experiment you are measuring the decomposition rate of organic matter, You have a large
amount of CH402 in a container filled with 3.024 Lof water. You Created a saline environment by
adding 2.4 g of sodium chloride, 3.6 g of calcium chloride, and 2.8 g of magnesium chloride before
diluting. iron (1) oxide is available for the microbes to oxidize the matter into carbon dioxide by forming
iron (II) aqueous ions. At the beginning of the experiment, you
measure the pH using a probe to be 7.13. After 73 hours you measure the pH again and obtain
7.54. Assuming that the pH change is solely due to the oxidation of organic matter, what is the
rate of organic matter decomposition in nanograms per hour?
Transcribed Image Text:For an experiment you are measuring the decomposition rate of organic matter, You have a large amount of CH402 in a container filled with 3.024 Lof water. You Created a saline environment by adding 2.4 g of sodium chloride, 3.6 g of calcium chloride, and 2.8 g of magnesium chloride before diluting. iron (1) oxide is available for the microbes to oxidize the matter into carbon dioxide by forming iron (II) aqueous ions. At the beginning of the experiment, you measure the pH using a probe to be 7.13. After 73 hours you measure the pH again and obtain 7.54. Assuming that the pH change is solely due to the oxidation of organic matter, what is the rate of organic matter decomposition in nanograms per hour?
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