Question

How much salt (NaCl) is carried by a river flowing at 30.0 m3/s and containing 50.0 mg/L of salt? Give your answer in kg/day.

Answer 1

Answer:

129,600kg/day

Explanation:

The river is flowing at 30.0$m^{3}/s$

1$m^{3}/s$ = 1000L

Multiply by 1000 to convert  to L/s

flowrate of river = 30*1000 =30,000L/s

Convert L/s to litre per day by multiplying by 24*60*60

flowrate of river = 30,000 * 24*60*60 L/day

                     = 2,592,000,000L/day

if the river contains 50mg of salt  in 1L of solution

lets find how many mg of salt (X) is contained in 2,592,000,000L/day

X= $\frac{ 2,592,000,000*50}{1}$

X= 129,600,000,000 mg/day

convert this value to kg/day by multiply by $10^{-6}$

X= 129,600kg/day