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Question 6
1 pts
Where does all the water go? According to the Environmental Protection Agency (EPA), in a typical wetland environment, 39% of the water is outflow,27% is seepage: 14% evaporates and 20% remains as water volume in the ecosystem (Referencer United
States Environmental Protection Agency Case Studies Report 832-R-93-005) Chloride compounds as residuals from residential areas are a problem for wetlands. Suppose that in a particular wetland environment the following concentrations in of chloride
compounds were found outflow. 45. seepage. 57, remaining due to evaporation 52, in the water volume 77. Compute the weighted average

Respuesta :

Answer:

65.7 mg/l.

Step-by-step explanation:

Answer:

A. 65.7 mg/l.

B. iv. No. The average chlorine compound concentration (mg/l) is too high.

Step-by-step explanation:

Given:

Outflow = 36%

= 36 l in 100 l of wetland

Seepage = 47%

= 47 l in 100 l of wetland

Evaporates = 8%

= 8 l in 100 l of wetland

Water volume = 9%

= 36 l in 100 l of wetland

Outflow = 53.6 mg/l

Seepage = 73.9mg/l

Remaining due to evaporation = 57.0mg/l

Water volume = 74.0 mg/l

Concentration of Chlorine compounds:

Outflow = 36/100 * 53.6

= 19.3 mg/l of outflow chlorine in the wetlands.

Seepage = 47/100 * 73.9

= 34.73 mg/l of seepage chlorine in the wetlands.

Evaporates = 8/100 * 57

= 4.56 mg/l of evaporates chlorine in the wetlands.

Water volume = 9/100 * 74

= 6.66 mg/l of outflow chlorine in the wetlands.

Weighted average concentration of chlorine compounds in 100 l of wetland = total(X*W)/totalW

Where,

Total w = 0.36 + 0.47 + 0.08 + 0.09

= 1

Total X*W = 19.3 + 34.73 + 4.56 + 6.66

= 65.65/1

= 65.7 mg/l.

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