Question

1. Complete the missing blanks in the following table. Remember concentration is amount of material per until volume.   Concentrations can be expressed as g/volume, mols/volume, or even as percentages (amount/100ml).   The other important point is to keep your units correct

2. Concentration	Volume used	Amount of material
   15mM	45 ul
   200uM	1 ml
   250mM	15 ul
   	125 ul	200 nMols
   	9 ml	25 mMols
   	10 ul	5 uMols
   1M		55 uMols
   50uM		100 pMols
   80mM		165 uMols

Answer 1

Part 1: The amounts of substance in each solution are calculated:

amount = M * V = 15 mmol / L * 10 uL * (1 L / 1x10 ^ -6 uL) = 1.5x10 ^ 8 mmol

2: 0.2 umol

3: 3.75x10 ^ 9 mmol

Part 2: The concentrations are calculated:

Concentrations = n / V = ​​(200 nmol / 125 uL) * (1x10 ^ -6 uL / ​​1 L) = 1.6x10 ^ 6 nM

5: 2.78 M

6: 0.5 M

Part 3: The volumes are calculated:

Volumes = n / M = 55x10 ^ -6 mol / 1 M = 5.5x10 ^ -5 L

8: 2 L

9: 2x10 ^ -5 L

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