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19 Nov 2019
Please be detail nificant Figures id-2716239-dt-content-rid-11731999 2/courses/CHEM231001.201720/CHE9620231 Hw 1 2017.pdf 2. Calculate the absolute and persent relativeuncertainty of the following and express your answer with a reasonable significant figures A 120.58 (t 2.250 x56213 (t 39 33 (t 1.120 B. Calculate the melarity and melalit of a 48.0 wr hydrofluoric acid, if the density of the hydrofluoric acid is 2.4 ml. C. The Environmental Protection Agency (EPA) has set standard levels for the amount of metal ion contaminants in drinking water. The upper limit for lead (Pb) is 15 part per billion. Common sources of lead are corrosion of household plumbing and erosion of natural deposits. Suppose a city found nanogram of Pb in 1 gram of water of its drinking water supply. 18 What is the concentration (in ppb) of Pb in the water sample? ll From your calculation above, is this water safe for human consumption?
Please be detail
nificant Figures id-2716239-dt-content-rid-11731999 2/courses/CHEM231001.201720/CHE9620231 Hw 1 2017.pdf 2. Calculate the absolute and persent relativeuncertainty of the following and express your answer with a reasonable significant figures A 120.58 (t 2.250 x56213 (t 39 33 (t 1.120 B. Calculate the melarity and melalit of a 48.0 wr hydrofluoric acid, if the density of the hydrofluoric acid is 2.4 ml. C. The Environmental Protection Agency (EPA) has set standard levels for the amount of metal ion contaminants in drinking water. The upper limit for lead (Pb) is 15 part per billion. Common sources of lead are corrosion of household plumbing and erosion of natural deposits. Suppose a city found nanogram of Pb in 1 gram of water of its drinking water supply. 18 What is the concentration (in ppb) of Pb in the water sample? ll From your calculation above, is this water safe for human consumption?
Nestor RutherfordLv2
25 Sep 2019