Part D and E s People Window Help 2%D Thu 2:25 PM a Secure : https:// session ma

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Part D and E s People Window Help 2%D Thu 2:25 PM a Secure : https:// session masteringchemis C Chapter 9, Assignment 2 Problem 9.97 assig D 95613739 14of 15 C14 of 15 Part D The maximum concertration set by the U.S Envinonmenital Protection Agency for lead in drinking water is 15 ppb and for cadmium is 5.0 ppb. 0Hint: 1 ppb-1 Hg/L) How many iters of water contaminated at this maximum level must you drink to consume 1.8 g of lead? Express your answer to two significant Egures and include the appropriate units Value Units Part E How many iers of wr comtamied ataximum level must you drink to contume 1.8pg f Express your answer to two significant figures and include the appropriate units ValueUnits MacBook Air 809 10

Explanation / Answer

(D)

Maximum allowable limit for Lead conc = 15 ppb = 15 ug/L

So, in order to consume 1.8 ug of lead, volume that needs to be consumed = (1/15)*1.8 = 0.12 L

(E)

Maximum allowable limit for Cadmium conc = 5 ppb = 5 ug/L

So, in order to consume 1.8 ug of Cadmium, volume that needs to be consumed = (1/5)*1.8 = 0.36 L

Hope this helps !

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