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A Microbiologist prepares 0.8 L of a 2% solution of Yeast Extract. How many grams of...

A Microbiologist prepares 0.8 L of a 2% solution of Yeast Extract. How many grams of yeast extract does she need to add?

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Answer #1

0.8litres means =800ml because (1litre = 1000ml)

generally

2% solution means

2 grams of yeast added to 100ml of the solution

100mlof the solution contains ---------------------2 grams of yeast

800 ml of the solution contais ----------------------? grams of yeast

                   = 800*2/100

                   = 16 grams of yeast

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