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8 April, 10:12

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?

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  1. 8 April, 13:43
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    Answer: 129,600kg/day

    In this question, you are given the river flow (30m3/s) and the salt concentration. Then to determine the amount of salt carried, you simply need to multiply the flow with concentration. Be careful because the unit in this question is different and need to be converted. The equation would be:

    Salt = river flow x salt concentration

    Salt = 30m3/s x 1000L/m3 x 50mg/L = 1,500,000mg/second

    Then convert it into kg/day

    Salt = 1,500,000mg/second x 10^-6 kg/mg x (3600 second/hour) x (24 hour/day) = 129,600kg/day
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