USE TABLE PROVIDED President Camacho has appointed his friend, billionaire chemi
ID: 298587 • Letter: U
Question
USE TABLE PROVIDED
President Camacho has appointed his friend, billionaire chemical industry tycoon Patricio “Pez” T. Zide, Secretary of Agriculture. Pez wants the US to adopt Deadweed, one of his products, as the national herbicide. There are ads on TV with the slogan “Deadweed: Make America Grow Again.” He argues Deadweed is safer for the environment than atrazine, the de facto U.S. national herbicide. Recently President Camacho Tweeted: “Atrazine is a disaster of an herbicide. Sad!” Mr. Zide has refused to release any information about the chemical composition or structure of Deadweed, but scientists have managed to piece together the information in Table 1, which also includes information for atrazine.
13. Based on solubility in water, which herbicide is more likely to leach to groundwater?
14. Based on molecular weight, vapor pressure and odor, which herbicide is more likely to volatilize?
15. Assuming the pH of a soil is 6.5 and it has a CEC of 10 cmol(+)/kg soil, which herbicide is likely to be adsorbed to the soil by cation exchange?
16. Which herbicide is biodegraded most quickly in the soil?
17. Which herbicide poses a greater risk of off-site contamination?
h the his friend, billionaire chemical industry tycoon Agriculture. Pez wants the US to adopt Deadweed Table 1. Selected properties of the herbicides Deadweed and atrazine. Atrazine Dead weed Property 0.035 10,000 Solubility in water (g/L) None ed is Charge at pH of 6.5 Negative Odorless Sharp, pungent Odor Zine Negligible Medium Vapor pressure Number of CI eted: atoms/molecule 10 0.5 Biodegradation rate (mg/kg de soil/day) 216 163 Molecular weight (g/mol y information about the chemical composition or sts have managed to piece together the information in ation for atrazine.Explanation / Answer
Answer:13
According to the solubility in water, Deadweed(as it have more solubility value in per litre) would be more likely to leach to groundwater.
Answer:14
According the vapor pressure, molecular weight and odor again Deadweed would be more likely to volatize as it dissolve more easily and faster than the Atrazine.
Answer:15
As the Deadweed having negative charge at the given pH value, therefore it would likely to be adsorbed to the soil by cation exchange.
Answer:16
As Atrazine has more value than Deadweed, therefore it would be biodegraded most quickly in the soil.
Answer:17
Deadweed have more risk of off site contamination as it is more volatile than Atrazine.
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