A Biologist Needs 500 ML of a 10 MM Phosphate

question 80

Multiple Choice

A biologist needs 500 mL of a 10 mM phosphate buffer.The stock solution of the buffer is 100 mM.How much stock solution should be used to make the 10 mM phosphate buffer?

• A) 500 mL
• B) 50 mL
• C) 5.0 mL
• D) 0.5 mL
• E) 2.0 mL

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