Question:
A sample of ocean water is tested for its bacterial content
Last updated: 7/6/2022
![A sample of ocean water is tested for its bacterial content](https://media.kunduz.com/media/sug-question/raw/84266988-1657069562.502474.jpeg?h=512)
A sample of ocean water is tested for its bacterial content in a plate count assay. The sample is diluted in the following series: 1:10, 1:10, 1:10, 1:10, 1:5. From the final dilution, 150 uL were plated. After incubation, the plate has 78 colonies, what is the original concentration in the sample?