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Home Q & A Board Biology-Related Homework Help Biochemistry
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kristina92293 kristina92293
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6 years ago
How do you make 200 mL of a 0.1 M solution of a substance that has a molecular weight of 121.1 g/mol?
  What will be an ideal response?
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#1
6 years ago
You need 0.2 liters of a 0.1 mole/liter solution or 0.02 moles of the solute. If the MW is 121.1 g/mol, you need 0.02 x 121.1 or 2.4 grams of solute. Thus, you weigh 2.4 grams of solute into a vessel and bring the volume up to 200 mL.
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