Parts per thousand(ppt).docx - Thallium is toxic to humans at concentrations in excess of 15 mg(thallium per kg(body mass a 15 ounces of thallium are

# Parts per thousand(ppt).docx - Thallium is toxic to humans...

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Thallium is toxic to humans at concentrations in excess of 15 mg (thallium) per kg (body mass). a. 15 ounces of thallium are dissolved in a 1 gallon container of water. What is the concentration of thallium in parts per thousand? ( final answer should be 112 ppt) b. a 175 lb adult drank half of the container. Will the thallium be fatal? (final answer should be yes) 1 15 mg Thallium is toxic at concentration of 1kg Here 1 kg represents the mass of the human body. a Given mass of thallium 1 28.3495 g Volume of water 1gallon 1gallon 3.78541L de 15 ounces oun nsity of wate ce r 1g /mL g 1000 mL 3.78541L mass of water 1 1gallon mL 1L 1gallon 3785.41g 1ppt is defined as the parts per thousand which further defined as 1 g/1000 g. So 1 mg of any substance in 1000 g of water solvent is determied

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Unformatted text preview: as 1 ppt. mass of thallium concentration of thallium mass of water 28.3495 g 3785.41g 1 g 1ppt 0.112 g 1g/1000 g 112 ppt Therefore, the required 15 ounces o solution i u s 112 ppt nce . b mass of adult 175 lb 1lb 0.453592 kg 0.453592 kg mass of adult 175 lb 79.3786 kg 1lb Volume of container 1gallon mass of thallium 28.3495 g 28.3495 g mass of thallium in half of container 14.17475 g 2 concentration o 14.17475 g 1000 mg f thallium in adult 79.3786 kg 1g mg 178.6 kg 15 mg concentration of thallium in adult is greater than the toxic level . 1kg So the thalliumis fatal. Therefore,the correct option is . Yes...
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• Spring '18
• krishna

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