Calculate the volume in mililiters of a 0.20 mol/L potassium dichromate solution that contains 175. mmol of potassium dichromate K, Cr, °7). Be sure your answer has the correct number of significant digits.
To calculate the volume of the solution, we can use the formula:
Volume (mL) = amount of solute (mol) / concentration (mol/L)
First, we need to convert 175 mmol to mol:
175 mmol = 0.175 mol
Now we can plug the values into the formula:
Volume = 0.175 mol / 0.20 mol/L
Volume = 0.875 L
Finally, we need to convert liters to milliliters:
Volume = 0.875 L * 1000 mL/L
Volume = 875 mL
Therefore, the volume of the 0.20 mol/L potassium dichromate solution that contains 175. mmol of potassium dichromate is 875 mL.