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The current Safe Drinking Water Act Maximum Contaminant Limit for arsenic in drinking water is 10 µg/L. The most recent report from the City of St. George (Utah) disclosed an 8.98 µg/L annual average of arsenic in the water from the wells it uses to supply its water system. What is the average concentration in this water supply in parts per billion? 8.98 µg/L = ppb b. Using the following assumptions, calculate the total amount of arsenic (in mg) an adult St. George resident would ingest per year in their tan water

The current Safe Drinking Water Act Maximum Contaminant Limit for arsenic in drinking water is 10 µg/L. The most recent report from the City of St. George (Utah) disclosed an 8.98 µg/L annual average of arsenic in the water from the wells it uses to supply its water system. What is the average concentration in this water supply in parts per billion? 8.98 µg/L = ppb b. Using the following assumptions, calculate the total amount of arsenic (in mg) an adult St. George resident would ingest per year in their tan water

Chemistry
Chemistry
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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3. The current Safe Drinking Water Act Maximum Contaminant Limit for arsenic in drinking water is 10 µg/L. The most recent report from the City of St. George (Utah) disclosed an 8.98 µg/L annual average of arsenic in the water from the wells it uses to supply its water system. a. What is the average concentration in this water supply in parts per billion? 8.98 µg/L = ppb b. Using the following assumptions, calculate the total amount of arsenic (in mg) an adult St. George resident would ingest per year in their tap water. Average daily consumption 1.5 L Days per year consuming St. George tap water 350 days Type equation here. C. If the person consuming the water at this rate weighs 195 pounds, what is their annual aggregate arsenic dose in mg As/kg body weight? Type equation here. ||
Transcribed Image Text:3. The current Safe Drinking Water Act Maximum Contaminant Limit for arsenic in drinking water is 10 µg/L. The most recent report from the City of St. George (Utah) disclosed an 8.98 µg/L annual average of arsenic in the water from the wells it uses to supply its water system. a. What is the average concentration in this water supply in parts per billion? 8.98 µg/L = ppb b. Using the following assumptions, calculate the total amount of arsenic (in mg) an adult St. George resident would ingest per year in their tap water. Average daily consumption 1.5 L Days per year consuming St. George tap water 350 days Type equation here. C. If the person consuming the water at this rate weighs 195 pounds, what is their annual aggregate arsenic dose in mg As/kg body weight? Type equation here. ||
You must show the way you calculated each answer. If you click on "Type equation here", with this document open in Word, the Equation Editor should open. Alternatively, you may print a copy, write you calculation by hand and then scan or take a photo to upload as a jpeg file 1. Amoxicillin needs to be used to treat the sore throat of a child who weighs 57 pounds caused by a susceptible streptococcal bacterium. The antibiotic should be given every 12 hours in divided doses. For the first three days of treatment, the dose needs to be 45 mg/kg per day. a. Calculate the amount needed for each dose. Type equation here. b. For the next seven days, the dose will be reduced to 25 mg/kg per day in divided doses given every 12 hours Calculate the amount needed for each dose. Type equation here. 2. A seven year-old Doberman male with prostatitis is treated with 5 mg finasteride per day. He weighs 92 pounds. What dose does he receive (in mg/kg body weight)? Type equation here. 3. The current Safe Drinking Water Act Maximum Contaminant Limit for arsenic in drinking water is 10 µg/L. The most recent report from the City of St. George (Utah) disclosed an 8.98 µg/L annual average of arsenic in the water from the wells it uses to supply its water system. a. What is the average concentration in this water supply in parts per billion? 8.98 µg/L = ppb
Transcribed Image Text:You must show the way you calculated each answer. If you click on "Type equation here", with this document open in Word, the Equation Editor should open. Alternatively, you may print a copy, write you calculation by hand and then scan or take a photo to upload as a jpeg file 1. Amoxicillin needs to be used to treat the sore throat of a child who weighs 57 pounds caused by a susceptible streptococcal bacterium. The antibiotic should be given every 12 hours in divided doses. For the first three days of treatment, the dose needs to be 45 mg/kg per day. a. Calculate the amount needed for each dose. Type equation here. b. For the next seven days, the dose will be reduced to 25 mg/kg per day in divided doses given every 12 hours Calculate the amount needed for each dose. Type equation here. 2. A seven year-old Doberman male with prostatitis is treated with 5 mg finasteride per day. He weighs 92 pounds. What dose does he receive (in mg/kg body weight)? Type equation here. 3. The current Safe Drinking Water Act Maximum Contaminant Limit for arsenic in drinking water is 10 µg/L. The most recent report from the City of St. George (Utah) disclosed an 8.98 µg/L annual average of arsenic in the water from the wells it uses to supply its water system. a. What is the average concentration in this water supply in parts per billion? 8.98 µg/L = ppb
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