Chemistry · Challenge

1/4
Diluting a stockRunning
Solution beaker. Final volume at 368 mL. Stock moles 72 mmol, Diluted moles 147.2 mmol. Currently stock moles is short by 75.2 mmol.TUNINGDILUTED MOLESSTOCK MOLES368 ML · 72 mmol
t = 0.0s

Stock moles

72mmol

Diluted moles

147.2mmol

368 mL

Solution beaker. Final volume at 368 mL. Stock moles 72 mmol, Diluted moles 147.2 mmol. Currently stock moles is short by 75.2 mmol.

What has to balanceM1V1=M2V2M_1V_1 = M_2V_2

What is happening

You take control of a hospital pharmacy stepping a stock solution down to a dose strength.

The ward’s bag is being made up wrong. It has to finish at 0.4 M, the stock is 2.4 M, and only 30 mL of it may be used.