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Viable Count and Serial Dilutions


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#1 RaeRae93

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Posted 21 November 2014 - 08:03 PM

Hi everyone, if anyone could give me some insight regarding these questions, that would be amazing. Obviously the answers on the screenshots are wrong. Thank you. 

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#2 mdfenko

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Posted 24 November 2014 - 06:19 AM

the first question: you've already diluted the soap 1:5. in order to prepare 1:50 soap you need to dilute a further 1:10...

 

second question: 150 million/ml is correct. to get 6 million divide 6/150=...ml (multiply by 1000 for ul)


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