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# stock solutions!! Watch

1. [/TD]

 You have a stock solution of 100mM NaOH. What volumes would contain the following quantities? 100µmol of NaOH. Volume of NaOH= .....µl (units in µl)

Any help is appreciated as i am going around in circles!
Please help with working, i am getting confused with all the units as they need to cancel out to get the final unit of µL.

Many thanks!
2. (Original post by Rhubarb96)

[/TD]

 You have a stock solution of 100mM NaOH. What volumes would contain the following quantities? 100µmol of NaOH. Volume of NaOH= .....µl (units in µl)

Any help is appreciated as i am going around in circles!
Please help with working, i am getting confused with all the units as they need to cancel out to get the final unit of µL.

Many thanks!

µL
3. (Original post by langlitz)

µL

sorry, but i dont understand where you got those numbers from?
4. (Original post by Rhubarb96)

sorry, but i dont understand where you got those numbers from?
µ = 1*10^(-6) => 1 µmol = 1*10^(-6) mol => 100 µmol = 100*10^(-6) mol
m = 1*10^(-3) => 1 mM = 1*10^(-3) M => 100 mM = 100*10^(-3) M

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