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### 9 Cards in this Set

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 According to biological dilution standards, 1mL of broth containing bacterial cells in 9mL of pure broth would yield what ratio? 1:1000 According to chemical dilution standards, 1mL of broth containing bacterial cells in 9mL of pure broth would yield what ratio? 1/9 What is an example of a serial dilution? 1:10 to 1:100 to 1:1000 How would you obtain a 1:10 dilution? 0.1mL in 0.9mL 0.1mL = X microliters X = 100 microliers df Dilution Factor Formula to calculate dilution and cell number. 1/vol * 1/df * # colonies 0.02 mm^3 = X /cm^3 X = 5*10^4 1 cm^3 = X mL X = 1mL