Unformatted text preview: expression, *NOT* in percentage (%) value as given in the problem 4108. For example, you need to use a 0.057 in your soution for the mass percent retained of 5.70 Answer) Total head loss = 0.34 m [Bonus Question] Problem 468 (Softening Dosage determination and cost estimation) It is optional and not required to solve. However, if you solve it correctly, you will get extra 20/100 points for your Homework #7. [Hints] 1. Be sure to convert Lime and Soda ash to mg/L as species before estimating their annual cost 2. Be sure to **summarize** calculated dosages at the end 3. Cost estimates should be in a $100 unit  round up to next $100 unit, i.e., $456,858 > $456,900. DO NOT include the amount in cents! (you'll have a deduction for that!) Due on Oct. 27 (R), at the beginning of the class...
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 Fall '10
 JAEWANYOON
 head loss, Cost overrun, Partsper notation, Total dynamic head

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